Hit and wake sleeping monster makes it growl

Unless you kill the monster with one hit, it'll wake up
cranky and make noise - waking up other sleeping monsters.

This was a bit tricky with all the message sequencing; I tested
all the hit/throw/fire/zap combos I could think of, and it took
a while to get things looking right.

src/dothrow.c

@@ -1830,8 +1830,6 @@ omon_adj(struct monst *mon, struct obj *obj, boolean mon_notices)
     /* sleeping target is more likely to be hit */
     if (mon->msleeping) {
         tmp += 2;
-        if (mon_notices)
-            mon->msleeping = 0;
     }
     /* ditto for immobilized target */
     if (!mon->mcanmove || !mon->data->mmove) {