fix repo settings menu to not display the "regenerate key" item when user does not have admin access

assets/scripts/app/views/repo/show.coffee

@@ -141,10 +141,8 @@ Travis.reopen
         error: ->
           Travis.lookup('controller:flash').loadFlashes([{ error: 'Travis encountered an error while trying to regenerate the key, please try again.'}])
 
-    displayRegenerateKey: true
-
     canRegenerateKey: (->
-      @get('displayRegenerateKey') && @get('hasAdminPermission')
+      @get('hasAdminPermission')
     ).property('hasAdminPermission')
 
     hasPermission: (->
@@ -162,6 +160,10 @@ Travis.reopen
         permissions.contains parseInt(@get('repo.id'))
     ).property('currentUser.adminPermissions.length', 'repo.id')
 
+    displayRegenerateKey: (->
+      @get('canRegenerateKey')
+    ).property('canRegenerateKey')
+
     displaySettingsLink: (->
       @get('hasPushPermission')
     ).property('hasPushPermission')