Revert "fix doc style (PaddlePaddle#61688)"

This reverts commit 12e5c97.

python/paddle/quantization/quantize.py

@@ -28,9 +28,8 @@
 class Quantization(metaclass=abc.ABCMeta):
     r"""
     Abstract class used to prepares a copy of the model for quantization calibration or quantization-aware training.
-
     Args:
-        config(QuantConfig): Quantization configuration
+        config(QuantConfig) - Quantization configuration
     """
 
     def __init__(self, config: QuantConfig):
@@ -44,11 +43,10 @@ def quantize(self, model: Layer, inplace=False):
     def convert(self, model: Layer, inplace=False, remain_weight=False):
         r"""Convert the quantization model to ONNX style. And the converted
         model can be saved as inference model by calling paddle.jit.save.
-
         Args:
-            model(Layer): The quantized model to be converted.
-            inplace(bool, optional): Whether to modify the model in-place, default is False.
-            remain_weight(bool, optional): Whether to remain weights in floats, default is False.
+            model(Layer) - The quantized model to be converted.
+            inplace(bool, optional) - Whether to modify the model in-place, default is False.
+            remain_weight(bool, optional) - Whether to remain weights in floats, default is False.
 
         Return: The converted model