An easy solution would be to just drop the labels and use your test data in the DataLoader loop:
for data, _ in loader:
    data = data.to(device)
    ...

This approach is a bit hacky, so the cleaner solution would be to write your own test dataset:
class TestDataset(Dataset):
    def __init__(self, path, transform=None):
        self.image_paths = glob.glob(path + '*.jpg')
        self.transform = transform

    def __getitem__(self, index):
        x = Image.open(self.image_paths[index])
        if self.transform is not None:
            x = self.transform(x)

        return x

    def __len__(self):
        return len(self.image_paths)