Revert "bpf: Prevent tail call between progs attached to different hooks"

This reverts commit d9a807fb which is
commit 28ead3ea 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: I8a5f9e59898eb41170e6562631ac23ab81f1271c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>