fix delete torchcodec bug

Author: BingooYang

fastdeploy/input/ernie4_5_vl_processor/utils/video_utils.py

@@ -85,7 +85,6 @@ def __init__(self, video_path, *args, **kwargs):
                 try:
                     import sys
 
-                    del sys.modules["torchcodec"]
                     from torchcodec.decoders import VideoDecoder
 
                     sys.modules["torchcodec"] = None

fastdeploy/input/video_utils.py

@@ -103,7 +103,6 @@ def __init__(self, video_path, *args, **kwargs):
                 try:
                     import sys
 
-                    del sys.modules["torchcodec"]
                     from torchcodec.decoders import VideoDecoder
 
                     sys.modules["torchcodec"] = None