[automerger skipped] [nearby][clean up] Delete all Fast Pair AOSP and HalfSheetUX code am: fcd2b7ccb0 -s ours

am skip reason: Merged-In I7efa92469f0c061a972a7dadf6a38686b78c61b4 with SHA-1 dadd8bddfd is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2746101

Change-Id: If571df34c8eada7731363470a212cac0483a72ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>