Merge "remount: Remove unused errno propagation." am: 2dcde2a36a

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2180364

Change-Id: I476f678f4bcc30528eee2c6e70241069ae3d5dd4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>