Annotated prow job with plank version kubernetes/test-infra#21054

Author: chaodaiG

keps/sig-testing/2539-continuously-deploy-k8s-prow/README.md

@@ -114,13 +114,6 @@ One possible way of dealing with breaking changes, is:
 
 This approach uses tide auto-merge feature, so that no need to worry about repo requirements such as need more than one approver etc.
 
-```
-<<[UNRESOLVED (spiffxp) ]>>
-Suggestion: annotate prow job with prow versions.
-<<[/UNRESOLVED]>>
-```
-
-
 ```
 <<[UNRESOLVED (spiffxp) ]>>
 Suggestion: how to keep slack reports on each automated bump.