Drop support for auto-respawn.

This commit removes the `auto-respawn` arena setting and the logic associated with it.

MobArena's hacky implementation of auto-respawning is buggy and discouraged. To get true auto-respawn functionality we'd have to move to the Spigot API instead of the Bukkit API.

src/main/java/com/garbagemule/MobArena/ArenaImpl.java

@@ -829,17 +829,7 @@ public class ArenaImpl implements Arena
             clearInv(p);
         }
         
-        if (!settings.getBoolean("auto-respawn", true)) {
-            deadPlayers.add(p);
-            endArena();
-            return;
-        }
-        
-        double full = p.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
-        p.setHealth(full);
-
-        plugin.getServer().getScheduler()
-            .scheduleSyncDelayedTask(plugin, () -> revivePlayer(p));
+        deadPlayers.add(p);
         endArena();
     }
 
@@ -863,10 +853,6 @@ public class ArenaImpl implements Arena
 
     @Override
     public void playerRespawn(Player p) {
-        if (settings.getBoolean("auto-respawn", true)) {
-            return;
-        }
-        
         deadPlayers.remove(p);
         plugin.getServer().getScheduler()
             .scheduleSyncDelayedTask(plugin, () -> revivePlayer(p));

src/main/resources/res/settings.yml

@@ -15,7 +15,6 @@ pvp-enabled: false
 monster-infight: false
 allow-teleporting: false
 spectate-on-death: true
-auto-respawn: true
 share-items-in-arena: true
 min-players: 0
 max-players: 0