Revert "[BUGFIX] Files with unclean path indexed multiple times"

This reverts commit 8ebf5d308cfccf8b0ae3f3d9663996f2b5372066

This breaks Travis big time.

Change-Id: I238c67b827ca7d5f44c529494578fe7debfa06aa
Reviewed-on: https://review.typo3.org/22080
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters