Revert "tcp/udp: Make early_demux back namespacified."

This reverts commit 7162f05f which is
commit 11052589cf5c0bab3b4884d423d5f60c38fcf25d upstream.

It is breaks the abi and is not needed in Android systems, so revert it.

Bug: 161946584
Change-Id: I357d52cd6a635050f305127246f95cb2302633be
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>