Revert "media: dvb-frontends: w7090p: fix null-ptr-deref in...

Revert "media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar"

This reverts commit b3d77a3f which is
commit ed0234c8 upstream.

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

Bug: 161946584
Change-Id: I64e1fc92a5481b182d7bc9f071099fa4cc3eab2f
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>