netfilter: get rid of the grossness in netfilter.h
netfilter: get rid of the grossness in netfilter.h

GCC is now smart enough to follow the inline trail correctly.
vmlinux size remain the same.

Signed-off-by: Jan Engelhardt <f383ed465f890d2e8ea864dd0c28cf8ec50a8942@medozas.de>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs