Remove uninteresting function_call testcase

This only tested that functions in various languages returning
SETOF could be called with SELECT func() as well as SELECT *
FROM func(). We have ample coverage of this in ICW already so
remove.

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plpgsql/test001_function_call_modes.ans

--- start_ignore
-DROP FUNCTION IF EXISTS func_plpgsql();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE
--- end_ignore
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-CREATE TABLE
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-INSERT 0 3
-CREATE OR REPLACE FUNCTION func_plpgsql() RETURNS SETOF func_call_modes_data
-AS $$
-        DECLARE r
-                func_call_modes_data%rowtype;
-        BEGIN
-                FOR r IN SELECT * FROM func_call_modes_data ORDER BY c1
-                LOOP
-                RETURN NEXT r;
-                END LOOP;
-        RETURN;
-END
-$$ LANGUAGE PLPGSQL;
-CREATE FUNCTION
-SELECT func_plpgsql();
- func_plpgsql 
---------------
- (1,1)
- (2,2)
- (3,3)
-(3 rows)
-
-SELECT * FROM func_plpgsql();
- c1 | c2 
-----+----
-  1 |  1
-  2 |  2
-  3 |  3
-(3 rows)
-
-DROP FUNCTION IF EXISTS func_plpgsql();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plpgsql/test001_function_call_modes.sql

--- Install procedure language PL/PGSQL
--- CREATE LANGUAGE plpgsql;
-
--- Data preparation
-\echo '-- start_ignore'
-DROP FUNCTION IF EXISTS func_plpgsql();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-\echo '-- end_ignore'
-
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-
--- PL/PGSQL
-CREATE OR REPLACE FUNCTION func_plpgsql() RETURNS SETOF func_call_modes_data
-AS $$
-        DECLARE r
-                func_call_modes_data%rowtype;
-        BEGIN
-                FOR r IN SELECT * FROM func_call_modes_data ORDER BY c1
-                LOOP
-                RETURN NEXT r;
-                END LOOP;
-        RETURN;
-END
-$$ LANGUAGE PLPGSQL;
-
-SELECT func_plpgsql();
-
-SELECT * FROM func_plpgsql();
-
--- Clean up
-DROP FUNCTION IF EXISTS func_plpgsql();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plpythonu/test001_function_call_modes.ans

--- start_ignore
-DROP FUNCTION IF EXISTS func_plpythonu();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE
--- end_ignore
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-CREATE TABLE
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-INSERT 0 3
-CREATE OR REPLACE FUNCTION func_plpythonu() RETURNS SETOF func_call_modes_data
-AS $$
-        return plpy.execute('SELECT * FROM func_call_modes_data ORDER BY c1;');
-$$ LANGUAGE plpythonu;
-CREATE FUNCTION
-SELECT func_plpythonu();
- func_plpythonu 
-----------------
- (1,1)
- (2,2)
- (3,3)
-(3 rows)
-
-SELECT * FROM func_plpythonu();
- c1 | c2 
-----+----
-  1 |  1
-  2 |  2
-  3 |  3
-(3 rows)
-
-DROP FUNCTION IF EXISTS func_plpythonu();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plpythonu/test001_function_call_modes.sql

--- Install procedure language PL/PYTHONU
--- CREATE LANGUAGE plpythonu;
-
--- Data preparation
-\echo '-- start_ignore'
-DROP FUNCTION IF EXISTS func_plpythonu();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-\echo '-- end_ignore'
-
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-
-
--- PL/PYTHONU
-CREATE OR REPLACE FUNCTION func_plpythonu() RETURNS SETOF func_call_modes_data
-AS $$
-        return plpy.execute('SELECT * FROM func_call_modes_data ORDER BY c1;');
-$$ LANGUAGE plpythonu;
-
-SELECT func_plpythonu();
-SELECT * FROM func_plpythonu();
-
--- Clean up
-DROP FUNCTION IF EXISTS func_plpythonu();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plr/test001_function_call_modes.ans

--- start_ignore
-DROP FUNCTION IF EXISTS func_plr();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE
--- end_ignore
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-CREATE TABLE
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-INSERT 0 3
-CREATE OR REPLACE FUNCTION func_plr() RETURNS SETOF func_call_modes_data
-AS $$
-        pg.spi.exec('SELECT * FROM func_call_modes_data ORDER BY c1;');
-$$ LANGUAGE plr;
-CREATE FUNCTION
-SELECT func_plr();
- func_plr 
-----------
- (1,1)
- (2,2)
- (3,3)
-(3 rows)
-
-SELECT * FROM func_plr();
- c1 | c2 
-----+----
-  1 |  1
-  2 |  2
-  3 |  3
-(3 rows)
-
-DROP FUNCTION IF EXISTS func_plr();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/plr/test001_function_call_modes.sql

--- Install procedure language PL/R
--- CREATE LANGUAGE plr;
-
--- Data preparation
-\echo '-- start_ignore'
-DROP FUNCTION IF EXISTS func_plr();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-\echo '-- end_ignore'
-
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-
--- PL/R
-CREATE OR REPLACE FUNCTION func_plr() RETURNS SETOF func_call_modes_data
-AS $$
-        pg.spi.exec('SELECT * FROM func_call_modes_data ORDER BY c1;');
-$$ LANGUAGE plr;
-
-SELECT func_plr();
-SELECT * FROM func_plr();
-
--- Clean up
-DROP FUNCTION IF EXISTS func_plr();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/sql/test001_function_call_modes.ans

--- start_ignore
-DROP FUNCTION IF EXISTS func_sql();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE
--- end_ignore
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-CREATE TABLE
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-INSERT 0 3
-CREATE OR REPLACE FUNCTION func_sql() RETURNS SETOF func_call_modes_data
-AS $$
-        SELECT * FROM func_call_modes_data ORDER BY c1;
-$$ LANGUAGE SQL;
-CREATE FUNCTION
-SELECT func_sql();
- func_sql 
-----------
- (1,1)
- (2,2)
- (3,3)
-(3 rows)
-
-SELECT * FROM func_sql();
- c1 | c2 
-----+----
-  1 |  1
-  2 |  2
-  3 |  3
-(3 rows)
-
-DROP FUNCTION IF EXISTS func_sql();
-DROP FUNCTION
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-DROP TABLE

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/sql/test001_function_call_modes.sql

--- Install procedure language SQL
--- CREATE LANGUAGE sql;
-
--- Data preparation
-\echo '-- start_ignore'
-DROP FUNCTION IF EXISTS func_sql();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;
-\echo '-- end_ignore'
-
-CREATE TABLE func_call_modes_data ( c1 INT, c2 INT ) DISTRIBUTED BY (c1);
-INSERT INTO func_call_modes_data SELECT i, i FROM generate_series(1,3) i;
-
--- SQL
-CREATE OR REPLACE FUNCTION func_sql() RETURNS SETOF func_call_modes_data
-AS $$
-        SELECT * FROM func_call_modes_data ORDER BY c1;
-$$ LANGUAGE SQL;
-
-SELECT func_sql();
-SELECT * FROM func_sql();
-
--- Clean up
-DROP FUNCTION IF EXISTS func_sql();
-DROP TABLE IF EXISTS func_call_modes_data CASCADE;

src/test/tinc/tincrepo/mpp/gpdb/tests/package/language/test_language.py

@@ -250,27 +250,10 @@ class languageTestCase(MPPTestCase):
         if sys.platform in ["sunos5","sunos6"]: self.skipTest("Not supported on solaris")
         self.doPLR(9,"plr/query")
 
-    def test_PLR0011_function_call_modes(self):
-        """ Language PL/R: function call modes """
-        if sys.platform in ["sunos5","sunos6"]: self.skipTest("Not supported on solaris")
-        self.doPLR(None, "plr/test001_function_call_modes", default='-e')
-
     def test_PLR0012_mpp16512(self):
         """ mpp16512 - regression for pl/R: R interpreter expression evaluation error OR connection to the server lost"""
         self.doPLR(None, "plr/mpp16512", default='-e')
 
-    def test_SQL001_function_call_modes(self):
-        """ Language SQL: function call modes """
-        self.doSQL(None, "sql/test001_function_call_modes", default='-e')
-
-    def test_PLPGSQL001_function_call_modes(self):
-        """ Language PL/PGSQL: function call modes """
-        self.doPLPGSQL(None, "plpgsql/test001_function_call_modes", default='-e')
-
-    def test_PLPYTHONU001_function_call_modes(self):
-        """ Language PL/PYTHONU: function call modes """
-        self.doPLPYTHONU(None, "plpythonu/test001_function_call_modes", default='-e')
-
     def do_PLPERL_initialize(self):
         """ Language PL/PERL upgrade to 9.1: initialize test data  """
         self.doTest(None, "plperl91/test000_initialize", default='-e')