add batch prediction for layout model

Author: SteffiVanHees

docling_ibm_models/layoutmodel/layout_predictor.py

@@ -131,13 +131,6 @@ def predict(self, orig_img: Union[Image.Image, np.ndarray]) -> Iterable[dict]:
             page_img = orig_img.convert("RGB")
         elif isinstance(orig_img, np.ndarray):
             page_img = Image.fromarray(orig_img).convert("RGB")
-        elif isinstance(orig_img, List):
-            if isinstance(orig_img[0], Image.Image):
-                page_img = [img.convert("RGB") for img in orig_img]
-            elif isinstance(orig_img[0], np.ndarray):
-                page_img = [Image.fromarray(img).convert("RGB") for img in orig_img]
-            else:
-                raise TypeError("Not supported input image format")
         else:
             raise TypeError("Not supported input image format")