modify quote permission grab response

Author: tigersk

tigeropen/quote/response/quote_grab_permission_response.py

@@ -17,5 +17,4 @@ def parse_response_content(self, response_content):
         if 'is_success' in response:
             self._is_success = response['is_success']
 
-        if self.data:
-            self.permissions = json.loads(self.data)
+        self.permissions = self.data