editor minimap: remove fold sync code - as it's already handled in the minimap code
r=ericp

(integrated from komodo (trunk) change 83281 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14059 b87d16e7-d29f-4ee1-b5ec-817d645d335f