Remove local threepids on account deactivation (#6426)

synapse/storage/data_stores/main/registration.py

@@ -569,6 +569,19 @@ class RegistrationWorkerStore(SQLBaseStore):
         return self._simple_delete(
             "user_threepids",
             keyvalues={"user_id": user_id, "medium": medium, "address": address},
+            desc="user_delete_threepid",
+        )
+
+    def user_delete_threepids(self, user_id: str):
+        """Delete all threepid this user has bound
+
+        Args:
+             user_id: The user id to delete all threepids of
+
+        """
+        return self._simple_delete(
+            "user_threepids",
+            keyvalues={"user_id": user_id},
             desc="user_delete_threepids",
         )