Remove F401 unused imports in fbcode//deeplearning/projects/sam3_release:_sam3

Reviewed By: brittanyrey

Differential Revision: D108589523

fbshipit-source-id: 6e56192d205566bd3cc393839b15a3e921849fa8

Author: generatedunixname2333890303787380

sam3/train/data/sam3_video_dataset.py

@@ -18,7 +18,6 @@
 # from decord import cpu, VideoReader
 
 from iopath.common.file_io import PathManager
-from PIL import Image as PILImage
 
 from .sam3_image_dataset import Datapoint, Sam3ImageDataset