Revert "completed: * fixes behaviour when changing flags, without corresp. rights (s,d,w)"

This reverts commit 08f22be8ea.

Conflicts:

	offlineimap/folder/IMAP.py

offlineimap/folder/IMAP.py

@@ -368,6 +368,7 @@ class IMAPFolder(BaseFolder):
             try:
                 imapobj.select(self.getfullname())
             except imapobj.readonly:
+		# unsure, whether this can be reached
                 UIBase.getglobalui().flagstoreadonly(self, uidlist, flags)
                 return
             r = imapobj.uid('store',