diff --git a/source/application/collision_ctrl.c b/source/application/collision_ctrl.c
index 8e53751..4948175 100644
--- a/source/application/collision_ctrl.c
+++ b/source/application/collision_ctrl.c
@@ -41,35 +41,6 @@ static void collision_ctrl_loop(void *arg)
 	while(1) {
 		int pulse_ns = drv_ioctl(&pwm2_c4, IOCTL_PWM_GET_PULSE_WIDTH_NS, NULL);
 		collision_ctrl_object.distance_mm = 343 * pulse_ns / 1000 / 2;
-#if 0
-		if(collision_ctrl_object.distance_mm < 300) {
-			char print_buffer[50];
-			if(engine_ctrl_get_current_speed_value() != 0) {
-				drive_ctrl_halt();
-				sprintf(print_buffer, "collision detected (%dmm)...\r\n", collision_ctrl_object.distance_mm);
-				shell_write(print_buffer, strlen(print_buffer));
-				sprintf(print_buffer, "going back...\r\n");
-				shell_write(print_buffer, strlen(print_buffer));
-				drive_ctrl_backward();
-				sleep_ms(500);
-				drive_ctrl_halt();
-
-				sprintf(print_buffer, "start turning...\r\n");
-				shell_write(print_buffer, strlen(print_buffer));
-				drive_ctrl_turn_left();
-				sleep_ms(drv_read(&rng, NULL, 0) % 3500 + 500); // rand between 500 and 4000
-				drive_ctrl_halt();
-
-				sprintf(print_buffer, "restart forward...\r\n");
-				shell_write(print_buffer, strlen(print_buffer));
-				drive_ctrl_forward();
-			}
-			else {
-				sprintf(print_buffer, "collision detected while not driving 8(\r\n");
-				shell_write(print_buffer, strlen(print_buffer));
-			}
-		}
-#endif
 		sleep_ms(1);
 	}
 }