[mod] one logger per engine - drop obsolete logger.getChild

Remove the no longer needed `logger = logger.getChild(...)` from engines.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/engines/google_videos.py

@@ -20,7 +20,6 @@ import re
 from urllib.parse import urlencode
 from lxml import html
 
-from searx import logger
 from searx.utils import (
     eval_xpath,
     eval_xpath_list,
@@ -59,8 +58,6 @@ about = {
     "results": 'HTML',
 }
 
-logger = logger.getChild('google video')
-
 # engine dependent config
 
 categories = ['videos']