Revert "Bluetooth: btqca: Add WCN3988 support"

This reverts commit 94096361 which is
commit f904feef 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: I1ca051a8ba0f510b7c48a13856ed54859d09f67c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>