Revert "Revert "Revert "Revert "Drop all path-related methods from android::String8""""

This reverts commit 141255f30c35372bba80bfff9ac164f34e38784b.

Reason for revert: Attempt re-submit again

Change-Id: I0e568fdf8f7a141ee3c5d54f68530ff478a47439
5 files changed