fix(mongo): fixed mongo delete statement

pallets-eco#135

Author: christopherpickering

flask_session/sessions.py

@@ -495,7 +495,7 @@ def open_session(self, app, request):
 
         if document and document.get("expiration") <= utc_now:
             # Delete expired session
-            self.store.remove({"id": store_id})
+            self.store.delete_one({"id": store_id})
             document = None
 
         if document is not None:
@@ -515,7 +515,7 @@ def save_session(self, app, session, response):
         store_id = self.key_prefix + session.sid
         if not session:
             if session.modified:
-                self.store.remove({"id": store_id})
+                self.store.delete_one({"id": store_id})
                 response.delete_cookie(
                     app.config["SESSION_COOKIE_NAME"], domain=domain, path=path
                 )