[automerger skipped] legacy: Remove unused le set encryption am: 64e57f94 -s ours

am skip reason: Merged-In I6035f9c6cc05c7ee2cd1e448933309b0456c7f59 with SHA-1 51a63af3 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/18440741



Change-Id: Ia259733f27073d2e5f3fdcaefab71fb33354c2b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>