server/facade: disable elasticsearch logs

Errors are covered by new safety mechanisms in image hash.

server/szurubooru/facade.py

@@ -101,6 +101,7 @@ def create_app():
     ''' Create a WSGI compatible App object. '''
     validate_config()
     coloredlogs.install(fmt='[%(asctime)-15s] %(name)s %(message)s')
+    logging.getLogger('elasticsearch').disabled = True
     if config.config['debug']:
         logging.getLogger('szurubooru').setLevel(logging.INFO)
     if config.config['show_sql']: