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

This reverts commit 2219d2280c69b4d39443fb26873b2f1c6096bd0e

This breaks Travis big time!

Change-Id: I7135b9478e01a5f95ad20df3a6b24bb5d9715ec8
Reviewed-on: https://review.typo3.org/22078
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters