Revert "ANDROID: vendor_hooks: Add hook for mmc queue"

This reverts commit a3b3ea87.

The hook added was not used by any vendor, so remove it to help with
merge issues with future LTS releases.

If this is needed by any real user, it can easily be reverted to add it
back and then the symbol should be added to the abi list at the same
time to prevent it from being removed again later.

Bug: 203756332
Bug: 306334321
Bug: 322951001
Cc: Qilin Tan <qilin.tan@mediatek.com>
Cc: Browse Zhang <browse.zhang@mediatek.com>
Cc: Sanjeev Yadav <sanjeev.y@mediatek.com>
Change-Id: I4f9dae83300d36be303fe0901e1ce83bd942b4ad
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>