Update vc_infer_pipeline.py

vc_infer_pipeline.py

@@ -644,5 +644,5 @@ class VC(object):
         del pitch, pitchf, sid
         if torch.cuda.is_available():
             torch.cuda.empty_cache()
-        os.remove(audio)
+        os.remove(input_audio_path)
         return audio_opt