Revert "feat(script): enable fast forwarding master"

This reverts commit ab26fe6b7fa8813e80c9be5f28793a95e852fa9c.
Need to investigate further before enabling fast-forward master.
Script is getting triggered only by checking the last job status
instead of checking the status of all multi-jobs status.

Change-Id: I9539f32bf0ae15c83f085ea6b2a52cf3c9f39a9c
diff --git a/script/scratch_scripts/fast-forward-master.sh b/script/scratch_scripts/fast-forward-master.sh
index 4e88cd7..bbdfa51 100755
--- a/script/scratch_scripts/fast-forward-master.sh
+++ b/script/scratch_scripts/fast-forward-master.sh
@@ -20,7 +20,12 @@
 cd ${clone_dir}
 git checkout master
 git merge --ff-only origin/integration
-git push origin master
+
+# On OpenCI, disable push for now, until we're confident enough we want to do
+# this automatically. See comments in https://linaro.atlassian.net/browse/TFC-223.
+if echo "$JENKINS_URL" | grep -q "oss.arm.com"; then
+    git push origin master
+fi
 
 cd ..
 rm -rf ${clone_dir}