Fixed issue with console being subscribed multiple times to permissions

src/main/java/net/minecraft/server/NetServerHandler.java

@@ -710,8 +710,7 @@ public class NetServerHandler extends NetHandler implements ICommandListener {
                 }
 
                 s = String.format(event.getFormat(), event.getPlayer().getDisplayName(), event.getMessage());
-                ColouredConsoleSender c = new ColouredConsoleSender(this.minecraftServer.server);
+                minecraftServer.console.sendMessage(s);
-                c.sendMessage(s);
                 for (Player recipient : event.getRecipients()) {
                     recipient.sendMessage(s);
                 }

src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java

@@ -111,7 +111,6 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
     public void setOp(boolean value) {
         this.op = value;
         perm.recalculatePermissions();
-        perm.calculatePermissions();
     }
 
     public Set<PermissionAttachmentInfo> getEffectivePermissions() {

src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java

@@ -49,7 +49,6 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         }
 
         perm.recalculatePermissions();
-        perm.calculatePermissions();
     }
 
     public boolean isPlayer() {