Revert "bpf: Track subprog poke descriptors correctly and fix use-after-free"

This reverts commit a9f36bf3 which is
commit f263a814 upstream.

It breaks the Android KABI and is not needed for Android devices at this
point in time.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id5d1b6407f9bd5228630b9a813e9799dbc448b96