Fix return value based on error thrown by pymysql library

Signed-off-by: Mriyam Tamuli <[email protected]>

Author: mbtamuli

ee/core/mysql.py

@@ -133,5 +133,4 @@ def check_db_exists(self, db_name):
             return False
         except MySQLConnectionError as e:
             Log.debug(self, str(e))
-            raise MySQLConnectionError
-            #return False
+            return False