[TCP]: Remove TCP Compound

This reverts: f890f921040fef6a35e39d15b729af1fd1a35f29

The inclusion of TCP Compound needs to be reverted at this time
because it is not 100% certain that this code conforms to the
requirements of Developer's Certificate of Origin 1.1 paragraph (b).

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/ipv4/Kconfig
Simple merge

diff --cc net/ipv4/Makefile
Simple merge

diff --cc net/ipv4/tcp_compound.c
Simple merge