Remove redundant enumeration in preparation for upstream PR (#429)

reference: refactor(Core): Add definition file for area table entries.
- azerothcore/azerothcore-wotlk#22054

Author: heyitsbench

src/Bracket_1_19/scripts/events/hallows_end.cpp

@@ -15,15 +15,14 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "AreaDefines.h"
 #include "Player.h"
 #include "ScriptMgr.h"
 
 #include "ProgressionSystem.h"
 
 enum Misc
 {
-    MAP_SCARLET_MONASTERY = 189,
-
     QUEST_HEADLESS_HORSEMAN = 50000,
 
     NPC_HEADLESS_HORSEMAN   = 23682