Revert "codeintel: handle failing to parse XML files better" (r81290)

This was better solved via r81546
(codeintel: oop: run codeintel optimized)

(integrated from komodo (trunk) change 81777 by marky)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@13590 b87d16e7-d29f-4ee1-b5ec-817d645d335f