Revert "bpf: track changes_pkt_data property for global functions"

This reverts commit 79751e92 which is
commit 51081a3f 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: Ia665bdeb8ea5b714a017beebf9bc9ba660a79a75
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>