Disable remote repo folder creation feature

[Tom Vincent]

Setting "folderfilter = lambda fn: False" (within a [local] section) prevented 
synchronisation for any folders:

$ offlineimap -a acc --info -u basic

Folderlist:
 bin (disabled)
 sent (disabled)
...

OfflineImap: INFO: Folderlist:
 bin (disabled)
 sent (disabled)
...

Is there another way to disable folder creation?

$ offlineimap --version
6.5.3.1