refactor(magic_pdf): update OCR engine selection in RapidTableModel

- Remove conditional logic for OCR engine selection
- Always use RapidOCR as the OCR engine
- Simplify the __init__ method by removing unused code

magic_pdf/model/sub_modules/table/rapidtable/rapid_table.py

@@ -8,7 +8,18 @@ from rapid_table import RapidTable
 class RapidTableModel(object):
     def __init__(self, ocr_engine):
         self.table_model = RapidTable()
-        if ocr_engine is None:
+        # if ocr_engine is None:
+        #     self.ocr_model_name = "RapidOCR"
+        #     if torch.cuda.is_available():
+        #         from rapidocr_paddle import RapidOCR
+        #         self.ocr_engine = RapidOCR(det_use_cuda=True, cls_use_cuda=True, rec_use_cuda=True)
+        #     else:
+        #         from rapidocr_onnxruntime import RapidOCR
+        #         self.ocr_engine = RapidOCR()
+        # else:
+        #     self.ocr_model_name = "PaddleOCR"
+        #     self.ocr_engine = ocr_engine
+
         self.ocr_model_name = "RapidOCR"
         if torch.cuda.is_available():
             from rapidocr_paddle import RapidOCR
@@ -16,9 +27,6 @@ class RapidTableModel(object):
         else:
             from rapidocr_onnxruntime import RapidOCR
             self.ocr_engine = RapidOCR()
-        else:
-            self.ocr_model_name = "PaddleOCR"
-            self.ocr_engine = ocr_engine
 
     def predict(self, image):