Fix bugs

requirements.txt

@@ -2,4 +2,4 @@ Flask
 pillow
 gphoto2
 scipy
-gpiod
+waitress

src/nenuscanner/scanner.py

@@ -20,7 +20,6 @@ def delay_capture(cam):
 def delay_save(cam, source, target):
     # Measure the time it takes to save
     start = time.time()
-    output = cam.capture()
     cam.save(source, target)
     delta = time.time() - start
 
@@ -28,8 +27,6 @@ def delay_save(cam, source, target):
     if config.DELAY is not None and delta < config.DELAY:
         time.sleep(config.DELAY - delta)
 
-    return output
-
 
 def scan(output_dir: str, on_and_off: bool = True):
     os.makedirs(output_dir, exist_ok=True)