Remove unused code (#1830)

* Add files via upload

* Add files via upload

detect.py

@@ -117,8 +117,6 @@ def detect(save_img=False):
             # Stream results
             if view_img:
                 cv2.imshow(str(p), im0)
-                if cv2.waitKey(1) == ord('q'):  # q to quit
-                    raise StopIteration
 
             # Save results (image with detections)
             if save_img: