fix: adjust syntax and remove unused var

Author: kkoomen

src/colordetection.py

@@ -42,7 +42,6 @@ def get_dominant_color(self, roi):
         :param roi: The image list.
         :returns: tuple
         """
-        average = roi.mean(axis=0).mean(axis=0)
         pixels = np.float32(roi.reshape(-1, 3))
 
         n_colors = 1

src/video.py

@@ -207,7 +207,7 @@ def scanned_successfully(self):
         for side, preview in self.result_state.items():
             for bgr in preview:
                 key = str(bgr)
-                if not key in color_count:
+                if key not in color_count:
                     color_count[key] = 1
                 else:
                     color_count[key] = color_count[key] + 1