Core/World: Convert Execute to PreparedStatement from Battleground random.

src/server/shared/Database/Implementation/CharacterDatabase.cpp

@@ -46,6 +46,7 @@ void CharacterDatabaseConnection::DoPrepareStatements()
     PREPARE_STATEMENT(CHAR_GET_GUID_RACE_ACC_BY_NAME, "SELECT guid, race, account FROM characters WHERE name = ?", CONNECTION_ASYNC);
     PREPARE_STATEMENT(CHAR_DEL_QUEST_STATUS_DAILY, "DELETE FROM character_queststatus_daily", CONNECTION_ASYNC);
     PREPARE_STATEMENT(CHAR_DEL_QUEST_STATUS_WEEKLY, "DELETE FROM character_queststatus_weekly", CONNECTION_ASYNC);
+    PREPARE_STATEMENT(CHAR_DEL_BATTLEGROUND_RANDOM, "DELETE FROM character_battleground_random", CONNECTION_ASYNC);
 
     // Start LoginQueryHolder content
     PREPARE_STATEMENT(CHAR_LOAD_PLAYER, "SELECT guid, account, name, race, class, gender, level, xp, money, playerBytes, playerBytes2, playerFlags, "