Remove dependency on moviepy

requirements.txt

@@ -26,6 +26,3 @@ pandas < 0.25.0 ; python_version < "3"
 
 # gunicorn not support windows
 gunicorn >= 19.10.0; sys_platform != "win32"
-
-# moviepy 1.0.1 not support imageio>2.5
-moviepy < 1.0.0 ; python_version < "3"