Do not post checks feedback when validating security fixes

The security fixes are often ad-hoc and would require
an extensive customisation of checks all the times.

Disable the checks feedback and just post review labels.

Change-Id: I6df9caaefb9314313c066a36f6083037eff1046f
diff --git a/vars/gerritPipeline.groovy b/vars/gerritPipeline.groovy
index a30c24b..8455d44 100644
--- a/vars/gerritPipeline.groovy
+++ b/vars/gerritPipeline.groovy
@@ -117,7 +117,8 @@
 }
 
 def postCheck(check) {
-    gerritCheck(checks: [ "${check.uuid}" : "${check.getCheckResultFromBuild()}" ], url: "${check.consoleUrl}")
+    // Checks are disabled on security fixes
+    // gerritCheck(checks: [ "${check.uuid}" : "${check.getCheckResultFromBuild()}" ], url: "${check.consoleUrl}")
 }
 
 def queryChangedFiles(url) {