Remove leftover avocado-server test step

Commit 5cb976a9 attempted to remove avocado-server from release test
plan, but forgot this one.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

examples/testplans/release.json

@@ -30,9 +30,6 @@
 	{"name": "Avocado Remote Machine HTML report",
 	 "description": "On a web browser, open the previously generated  HTML report at `/tmp/report.html`. Verify that all the links such as `job-YYYY-MM-DD...` (under `Results Dir`), `1-/**/avocado/tests/**/examples/tests/passtest.py:PassTest.test` (under `Test ID`) and `debug.log` point to valid locations."},
 
-	{"name": "Avocado Server Functional Test",
-	 "description": "On the same machine used during 'Avocado Server Run', on another console, run `$ curl http://localhost:9405`. Expected result: json response"},
-
 	{"name": "Avocado VT",
 	 "description": "Configure avocado vt as described in http://avocado-vt.readthedocs.org/en/latest/GetStartedGuide.html including the `avocado list` and running the migration test. Expected result: No errors."},