removed non-supported autoconf macro
removed non-supported autoconf macro

hanw/p4c-bm,ops-p4/ops-p4c,ops-p4/ops-p4c,hanw/p4c-bm,hanw/p4c-bm,ops-p4/ops-p4c,hanw/p4c-bm,ops-p4/ops-p4c,p4lang/p4c-bm,p4lang/p4c-bm,p4lang/p4c-bm