[automerger skipped] Revert "Add ramdisk_available to init_first_stage's deps" am: 9c79e27ef0 -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: I4a4415dd6209a8054e96855412de6500e4f3fd2d