Now that we can call kmem_malloc without Giant it should be safe to do mbuf allocation without Giant, so remove the GIANT_REQUIRED from mb_alloc in the M_TRYWAIT case.
Now that we can call kmem_malloc without Giant it should be safe
to do mbuf allocation without Giant, so remove the GIANT_REQUIRED
from mb_alloc in the M_TRYWAIT case.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase