fix delete.result of

    remove explain, Currently, the query plan is
    in the process of change and modification,
    and the consistency check of the query plan is not performed

mysql-test/suite/tianmu/t/delete.test

@@ -173,8 +173,6 @@ INSERT INTO t2 VALUES(10),(20);
 
 SET SESSION sql_safe_updates=1;
 
-EXPLAIN DELETE t2 FROM t1 JOIN t2 WHERE t1.a = 10;
--- error ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE
 DELETE t2 FROM t1 JOIN t2 WHERE t1.a = 10;
 
 SET SESSION sql_safe_updates=default;
@@ -214,7 +212,6 @@ insert into t1 values (1,1),(2,1),(1,3);
 insert into t2 values (1,1),(2,2),(3,3);
 insert into t3 values (1,1),(2,1),(1,3);
 select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
-explain select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
 delete t2.*,t3.* from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
 # This should be empty
 select * from t3;

mysql-test/t/delete.test

@@ -146,8 +146,6 @@ INSERT INTO t2 VALUES(10),(20);
 
 SET SESSION sql_safe_updates=1;
 
-EXPLAIN DELETE t2 FROM t1 JOIN t2 WHERE t1.a = 10;
--- error ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE
 DELETE t2 FROM t1 JOIN t2 WHERE t1.a = 10;
 
 SET SESSION sql_safe_updates=default;
@@ -222,7 +220,6 @@ insert into t1 values (1,1),(2,1),(1,3);
 insert into t2 values (1,1),(2,2),(3,3);
 insert into t3 values (1,1),(2,1),(1,3);
 select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
-explain select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
 delete t2.*,t3.* from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
 # This should be empty
 select * from t3;