fix: remove unused local variables in classnet and lap

- Remove unused rows and cols variables in NeuralNetwork.detect()
  in classnet.py (they are only needed in getBoundingBoxes())
- Remove unused pose3d local variable in Lap.check_threshold()
  in follow_line/lap.py

Author: Kunal-Somani

common/hal_interfaces/hal_interfaces/general/classnet.py

@@ -220,8 +220,6 @@ def __init__(self):
         self.net = cv2.dnn.readNetFromTensorflow(FROZEN_GRAPH, PB_TXT)
 
     def detect(self, img):
-        rows = img.shape[0]
-        cols = img.shape[1]
         self.net.setInput(
             cv2.dnn.blobFromImage(
                 img,
@@ -238,8 +236,6 @@ def detect(self, img):
 
     # Get bounding boxes function
     def getBoundingBoxes(self, img):
-        rows = img.shape[0]
-        cols = img.shape[1]
         detections = self.detect(img)
         bounding_boxes = []
 

exercises/follow_line/python_template/lap.py

@@ -9,7 +9,6 @@ def __init__(self, pose3d):
     # Function to check for threshold
     # And incrementing the running time
     def check_threshold(self):
-        pose3d = self.pose3d.getPose3d()
 
         # Variable for pause
         if self.pause_condition == False: