[automerger skipped] Partial: Reland "libbinder: remove __ANDROID_APEX__...

[automerger skipped] Partial: Reland "libbinder: remove __ANDROID_APEX__ stability diff" am: aeff056c am: 411d0777 am: fd000bfd -s ours

am skip reason: skip tag Change-Id I189b5c07ffd767fa46c59fd8828ba4f59b31f095 with SHA-1 b6c7e22c is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1656239

Change-Id: I2d504f647dbe4268f04df46f0cf006bbffdfd693