[automerger skipped] Revert "Add ramdisk_available to init_first_stage's deps" am: 9c79e27ef0 am: de05e194ad -s ours

am skip reason: Merged-In I8bdb8dda3417aa0ab01f22c4103a9d2e52baf529 with SHA-1 e8660a008b is already in history. Merged-In was found from reverted change.

Reverted change: https://googleplex-android-review.googlesource.com/c/platform/external/libcxx/+/15068060

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libcxx/+/15167744

Change-Id: Ie6e623bb59c7ebf6e24a6d8a13282bd6c1f4b7ec