[BugFix] fix reload gpt (#1945)

Author: ZHUI

paddlenlp/transformers/gpt/modeling.py

@@ -401,18 +401,14 @@ def __init__(self,
         self.word_embeddings = nn.Embedding(
             vocab_size,
             hidden_size,
-            weight_attr=paddle.ParamAttr(
-                name="word_embeddings",
-                initializer=nn.initializer.Normal(
-                    mean=0.0, std=initializer_range)))
+            weight_attr=paddle.ParamAttr(initializer=nn.initializer.Normal(
+                mean=0.0, std=initializer_range)))
 
         self.position_embeddings = nn.Embedding(
             max_position_embeddings,
             hidden_size,
-            weight_attr=paddle.ParamAttr(
-                name="pos_embeddings",
-                initializer=nn.initializer.Normal(
-                    mean=0.0, std=initializer_range)))
+            weight_attr=paddle.ParamAttr(initializer=nn.initializer.Normal(
+                mean=0.0, std=initializer_range)))
 
         self.dropout = nn.Dropout(hidden_dropout_prob)