sim: common: delete unused argbuf in generated mloop code

This function only uses prev_abuf, not abuf, and doesn't inline code
from the various ports on the fly, so abuf will never be used.

diff --git a/sim/common/genmloop.sh b/sim/common/genmloop.sh
index 4312dc5468f6a0d2fd95438323374f7b1fd4ad94..e6683def4637bc32e24fedd0fc02aa67b566bcad 100755 (executable)
--- a/sim/common/genmloop.sh
+++ b/sim/common/genmloop.sh
@@ -1138,8 +1138,6 @@ void
 void
 @prefix@_pbb_after (SIM_CPU *current_cpu, SCACHE *sc)
 {
-  SEM_ARG sem_arg = sc;
-  const ARGBUF *abuf = SEM_ARGBUF (sem_arg);
   const SEM_ARG prev_sem_arg = sc - 1;
   const ARGBUF *prev_abuf = SEM_ARGBUF (prev_sem_arg);