simplify vendor commit checker

Author: deads2k

tools/rebasehelpers/commitchecker/validate.go

@@ -31,20 +31,16 @@ UPSTREAM commits are validated against the following regular expression:
 Examples of valid summaries:
 
   UPSTREAM: 12345: A kube fix
-  UPSTREAM: coreos/etcd: 12345: An etcd fix
   UPSTREAM: <carry>: A carried kube change
   UPSTREAM: <drop>: A dropped kube change
-  UPSTREAM: revert: abcd123: coreos/etcd: 12345: An etcd fix
-  UPSTREAM: k8s.io/heapster: 12345: A heapster fix
+  UPSTREAM: revert: 12345: A kube revert
 
 `
 
 var AllValidators = []func([]util.Commit) error{
 	ValidateUpstreamCommitSummaries,
 	ValidateUpstreamCommitsWithoutGodepsChanges,
-	ValidateUpstreamCommitModifiesSingleGodepsRepo,
 	ValidateUpstreamCommitModifiesOnlyGodeps,
-	ValidateUpstreamCommitModifiesOnlyDeclaredGodepRepo,
 	ValidateUpstreamCommitModifiesOnlyKubernetes,
 }
 

tools/rebasehelpers/util/git.go

@@ -9,7 +9,7 @@ import (
 	"strings"
 )
 
-var UpstreamSummaryPattern = regexp.MustCompile(`UPSTREAM: (revert: [a-f0-9]{7,}: )?(([\w\.-]+\/[\w-\.-]+)?: )?(\d+:|<carry>:|<drop>:)`)
+var UpstreamSummaryPattern = regexp.MustCompile(`UPSTREAM: (revert: )?(([\w\.-]+\/[\w-\.-]+)?: )?(\d+:|<carry>:|<drop>:)`)
 
 // supportedHosts maps source hosts to the number of path segments that
 // represent the account/repo for that host. This is necessary because we