Update app.py

app.py

@@ -210,8 +210,6 @@ class VideoClassifier:
                 match = re.search(pattern, main_class)
                 if match:
                     main_class = match.group(1).strip()
-                else:
-                    main_class = None
             except:
                 main_class=main_class
         else:
@@ -284,8 +282,6 @@ class VideoClassifier:
                 match = re.search(pattern, answer)
                 if match:
                     sub_class = match.group(1).strip()
-                else:
-                    sub_class = None
             except:
                 subclass=answer
         else: