Update hand_motion_recognizer.py

Got rid of unused libraries

Author: Hemant-Dua

Hand-Motion-Detection/hand_motion_recognizer.py

@@ -1,8 +1,5 @@
 import mediapipe as mp
 import cv2
-import numpy as np
-import uuid
-import os
 
 mp_drawing = mp.solutions.drawing_utils
 mp_hands = mp.solutions.hands