Pubmed scraper: don't yield result count

gargantext/scrapers/pubmed.py

@@ -96,14 +96,6 @@ class PubmedScraper(Scraper):
         self.webenv = result.xpath('./WebEnv/text()').extract_first()
         self.querykey = result.xpath('./QueryKey/text()').extract_first()
 
-        yield {
-            'count': self.count,
-            'query': {
-                'webenv': self.webenv,
-                'querykey': self.querykey,
-            },
-        }
-
         yield from self.request_results()
 
     def parse_efetch(self, response):