remove flaky gerrit tests

Gerrit tests have intermittent failures so removing them from the build.  Upstream gerrit
isn't running tests on their builds either and it's probably due to the same reason.

Change-Id: I2cb2afb104895a90aed821cb2c720b3061f27262

modules/openstack_project/files/jenkins_job_builder/config/gerrit.yaml

@@ -120,7 +120,6 @@
           cd gerrit
           buck clean
           buck build release
-          buck test --all
       - shell: "cp gerrit/buck-out/gen/release.war gerrit/buck-out/gen/gerrit-$PROJECT_VER.war"
 
     publishers:
@@ -159,7 +158,6 @@
           cd gerrit
           buck clean
           buck build release
-          buck test --all
       - shell: "cp gerrit/buck-out/gen/release.war gerrit/buck-out/gen/gerrit-$PROJECT_VER.war"
 
     publishers:
@@ -194,7 +192,6 @@
           cd gerrit
           buck clean
           buck build release
-          buck test --all
       - shell: "cp gerrit/buck-out/gen/release.war gerrit/buck-out/gen/gerrit-$PROJECT_VER.war"
 
     publishers: