Revert "Always use the same jedi environment (#4687)" (#4850)

This reverts commit 77995ff.

Author: DonJayamanne

news/2 Fixes/4687.md

@@ -562,8 +562,7 @@ def _process_request(self, request):
                 jedi.api.names(
                     source=request.get('source', None),
                     path=request.get('path', ''),
-                    all_scopes=True,
-                    environment=self.environment),
+                    all_scopes=True),
                 request['id'])
 
         script = jedi.Script(