clean unittest.skipIf 5/N (#44288)

python/paddle/fluid/tests/unittests/ipu/test_varname_inplace_ipu.py

@@ -20,8 +20,6 @@ import paddle.static
 from paddle.fluid.tests.unittests.ipu.op_test_ipu import IPUOpTest
 
 
-@unittest.skipIf(not paddle.is_compiled_with_ipu(),
-                 "core is not compiled with IPU")
 class TestBase(IPUOpTest):
 
     def setUp(self):

python/paddle/fluid/tests/unittests/ipu/test_warpctc_op_ipu.py

@@ -21,8 +21,6 @@ from paddle.fluid.tests.unittests.ipu.op_test_ipu import IPUOpTest
 import paddle.nn.functional as F
 
 
-@unittest.skipIf(not paddle.is_compiled_with_ipu(),
-                 "core is not compiled with IPU")
 class TestBase(IPUOpTest):
 
     def setUp(self):

python/paddle/fluid/tests/unittests/ipu/test_weight_decay_ipu.py

@@ -22,8 +22,6 @@ import paddle.static
 from paddle.fluid.tests.unittests.ipu.op_test_ipu import IPUOpTest
 
 
-@unittest.skipIf(not paddle.is_compiled_with_ipu(),
-                 "core is not compiled with IPU")
 @unittest.skipIf(IPUOpTest.use_ipumodel(), "skip for ipumodel")
 class TestBase(IPUOpTest):
 
@@ -36,6 +34,7 @@ class TestBase(IPUOpTest):
         self.model_path = os.path.join(self.temp_dir.name, "weight_decay")
 
     def tearDown(self):
+        super().tearDown()
         self.temp_dir.cleanup()
 
     def set_atol(self):

python/paddle/fluid/tests/unittests/ipu/test_weight_sharing_ipu.py

@@ -20,8 +20,6 @@ import paddle.static
 from paddle.fluid.tests.unittests.ipu.op_test_ipu import IPUOpTest
 
 
-@unittest.skipIf(not paddle.is_compiled_with_ipu(),
-                 "core is not compiled with IPU")
 class TestWeightSharing(IPUOpTest):
 
     def setUp(self):