[theplatform] remove unnecessary import

youtube_dl/extractor/theplatform.py

@@ -22,7 +22,6 @@ from ..utils import (
     xpath_with_ns,
     mimetype2ext,
     find_xpath_attr,
-    update_url_query,
 )
 
 default_ns = 'http://www.w3.org/2005/SMIL21/Language'
@@ -31,8 +30,7 @@ _x = lambda p: xpath_with_ns(p, {'smil': default_ns})
 
 class ThePlatformBaseIE(OnceIE):
     def _extract_theplatform_smil(self, smil_url, video_id, note='Downloading SMIL data'):
-        smil_url = update_url_query(smil_url, {'format': 'SMIL'})
-        meta = self._download_xml(smil_url, video_id, note=note)
+        meta = self._download_xml(smil_url, video_id, note=note, query={'format': 'SMIL'})
         error_element = find_xpath_attr(
             meta, _x('.//smil:ref'), 'src',
             'http://link.theplatform.com/s/errorFiles/Unavailable.mp4')