Update Codes of Cifar and VOC2012 (#29204)

* Update Cifar Codes

* Update VOC2012 Codes

* Update voc2012.py

* Update voc2012.py

* Update cifar.py

* Update cifar.py

* Update voc2012.py

python/paddle/vision/datasets/cifar.py

@@ -80,7 +80,6 @@ class Cifar10(Dataset):
                     image = paddle.reshape(image, (1, -1))
                     return self.fc(image), label
 
-            paddle.disable_static()
 
             normalize = Normalize(mean=[0.5, 0.5, 0.5],
                                   std=[0.5, 0.5, 0.5],
@@ -214,7 +213,6 @@ class Cifar100(Cifar10):
                     image = paddle.reshape(image, (1, -1))
                     return self.fc(image), label
 
-            paddle.disable_static()
 
             normalize = Normalize(mean=[0.5, 0.5, 0.5],
                                   std=[0.5, 0.5, 0.5],

python/paddle/vision/datasets/voc2012.py

@@ -68,7 +68,6 @@ class VOC2012(Dataset):
                 def forward(self, image, label):
                     return paddle.sum(image), label
 
-            paddle.disable_static()
 
             normalize = Normalize(mean=[0.5, 0.5, 0.5],
                                   std=[0.5, 0.5, 0.5],