Revert "i2c: acpi: Unbind mux adapters before delete"

This reverts commit 8dd8de42 which is
commit 3f858bbf 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: I1e0a7005b91255e9f05cee8de2b211372c6c3550
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>