Revert "Checkpointing work on mailbox deletion"

This reverts commit f58ebe390d.

Not going to follow this path right now

offlineimap/accounts.py

@@ -95,16 +95,6 @@ class Account(CustomConfig.ConfigHelperMixin):
             return sleepresult
             
 class AccountSynchronizationMixin:
-    def __init__(self, config, name, folderhash, folderhashlock):
-        Account.__init__(self, config, name)
-        self.folderhash = folderhash
-        self.folderhashlock = folderhashlock
-        self.folderhashlock.acquire()
-        try:
-            self.folderhash[name] = {}
-        finally:
-            self.folderhashlock.release()
-
     def syncrunner(self):
         self.ui.registerthread(self.name)
         self.ui.acct(self.name)
@@ -119,18 +109,6 @@ class AccountSynchronizationMixin:
 
         # Connect to the local cache.
         self.statusrepos = offlineimap.repository.LocalStatus.LocalStatusRepository(self.getconf('localrepository'), self)
-
-        # FIXME: need new UI here?
-        self.ui.syncfolders(self.remoterepos, self.localrepos)
-        srcfolders = self.remoterepos.getfolders()
-        destfolders = self.localrepos.getfolders()
-
-        self.folderhashlock.acquire()
-        try:
-            self.folderhash[name] = {'src': srcfolders, 'dest': destfolders}
-            self.folderhash['___sem'].release()
-        finally:
-            self.folderhashlock.release()
             
         if not self.refreshperiod:
             self.sync()