Revert "Fix comment on requirements job"

This reverts commit 4f96b2727c.

The correct fix for this is not to stop using the feature.

Change-Id: I4b35a6ca13153257984074b5145a5e691564e0ca

jenkins/scripts/project-requirements-change.py

@@ -252,8 +252,6 @@ def main():
 
     # report the results
     if failed or head_reqs.failed or branch_reqs.failed:
-        print("*** Incompatible requirement found")
-        print("***  See http://docs.openstack.org/developer/requirements/")
         sys.exit(1)
     print("Updated requirements match openstack/requirements.")
 

zuul/layout.yaml

@@ -1808,6 +1808,7 @@ jobs:
     branch: ^(?!master).*$
 
   - name: ^gate-.*-requirements$
+    failure-message: Incompatible requirement found; see http://docs.openstack.org/developer/requirements/
     files:
       - '^tools/.*-requires$'
       - '^.*requirements.txt$'