Merge "Remove unused String8::setPathName." am: 40a0664b84 am: 5f7d548dc6 am: 941b1a61b0 am: 5c5854a383

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1765465

Change-Id: Ia505c88c596169a47e07c5f8fb869c0de68b42c2