Revert "i3c: add missing include to internal header"

This reverts commit 6e8e3fb5 which is
commit 3b661ca5 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Iccc3d4babae6ffac48aefb4aaf0cce335936cc0a
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>