refactor: remove else statement for thickness in circle not needed

Signed-off-by: Onuralp SEZER <thunderbirdtr@gmail.com>

supervision/annotators/core.py

@@ -902,14 +902,11 @@ class DotAnnotator(BaseAnnotator):
             )
             center = (int(xy[detection_idx, 0]), int(xy[detection_idx, 1]))
 
+            cv2.circle(scene, center, self.radius, color.as_bgr(), -1)
             if self.outline_thickness:
                 cv2.circle(
                     scene, center, self.radius, (0, 0, 0), self.outline_thickness
                 )
-                cv2.circle(scene, center, self.radius, color.as_bgr(), -1)
-            else:
-                cv2.circle(scene, center, self.radius, color.as_bgr(), -1)
-
         return scene