Revert "net: usb: cdc-ncm: check for filtering capability"

This reverts commit feb89ec6 which is
commit 61c3e894 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: I7f0ad1bc2ff9c5819f78dada71531e9eb6accd95
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>