netfilter: gre: Use consistent GRE_* macros instead of ones defined by netfilter.

There are already some GRE_* macros in kernel, so it is unnecessary
to define these macros. And remove some useless macros

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Gao Feng 2016-08-25 23:08:11 +08:00 • committed by Pablo Neira Ayuso
commit ecc6569f35
4 changed files with 7 additions and 24 deletions