jenkins: revert back to ambiguous permissions

Apparently the Jenkins OpenShift plugin is not compatible with that, and
it nukes the whole matrix on every login. *sigh*

jenkins/jenkins.yaml

@@ -11,11 +11,11 @@ jenkins:
       # Allow viewing jobs to anonymous users
       # Note: this _replaces_ the whole permissions matrix
       permissions:
-        - "USER:Job/Discover:anonymous"
-        - "USER:Job/Read:anonymous"
-        - "USER:Job/ViewStatus:anonymous"
-        - "USER:Overall/Administer:mrc0mmand-admin-edit-view"
-        - "USER:Overall/Read:anonymous"
+        - "Job/Discover:anonymous"
+        - "Job/Read:anonymous"
+        - "Job/ViewStatus:anonymous"
+        - "Overall/Administer:mrc0mmand-admin-edit-view"
+        - "Overall/Read:anonymous"
 
   globalNodeProperties:
     # Set LANG=en_US.utf8 everywhere to avoid encoding issues when viewing