Remove the input delay setting and players being away

Neither does anything with the server running the games. Counting down to play
again moves into the match, so the server and every player agree on it and the
results show it starting again.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/weapon.cpp

@@ -337,7 +337,7 @@ static bool is_hostile(Sim& sim, int owner, int target)
 {
     Match& match = sim.match;
     return match.state != MATCH_PRACTICE ||
-           (sim.fighters[owner].isPvp && sim.fighters[target].isPvp && !match.isAway[owner] && !match.isAway[target]);
+           (sim.fighters[owner].isPvp && sim.fighters[target].isPvp);
 }
 
 static bool is_target(Sim& sim, int target, int owner)