Remove plus2 access for pushing outside refs/for/refs

This should, if I read https://gerrit-review.googlesource.com/Documentation/access-control.html correctly, not interfer with the ability to upload changes.

Change-Id: I8aaa33f706a2fb33343c131bd0841379997cdc7e

project.config

diff --git a/project.config b/project.config
index 0c8893c..a9c4bca 100644
--- a/project.config
+++ b/project.config
@@ -24,17 +24,13 @@
 	create = group Project Owners
 	create = group mdb/gmscore-size
 	create = group mdb/r8-team
-	create = group plus2
 	forgeAuthor = group mdb/r8-team
-	forgeAuthor = group plus2
 	forgeCommitter = group Project Owners
 	forgeCommitter = group mdb/gmscore-size
 	forgeCommitter = group mdb/r8-team
-	forgeCommitter = group plus2
 	push = group Project Owners
 	push = group mdb/gmscore-size
 	push = group mdb/r8-team
-	push = group plus2
 	label-Code-Review = -2..+2 group Project Owners
 	label-Code-Review = -2..+2 group mdb/gmscore-size
 	label-Code-Review = -2..+2 group mdb/r8-team
@@ -45,11 +41,9 @@
 	submit = group plus2
         submitAs = group mdb/gmscore-size
         submitAs = group mdb/r8-team
-	submitAs = group plus2
 	editTopicName = +force group Project Owners
 	editTopicName = +force group mdb/gmscore-size
 	editTopicName = group mdb/r8-team
-	editTopicName = group plus2
 [access "refs/meta/config"]o
 	exclusiveGroupPermissions = read
 	read = group Project Owners