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

This reverts commit b48b926c399d939a6e06b7096d501a1d72c72f67

This breaks Travis big time.

Change-Id: I2c9bb635991696ca55b8001aeb195e8f27592a59
Reviewed-on: https://review.typo3.org/22079
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters