remove test temporal

test=develop

python/paddle/fluid/tests/unittests/testsuite.py

@@ -156,26 +156,8 @@ def append_input_output(block, op_proto, np_list, is_input, dtype):
     return var_dict
 
 
-def var_cast(block, input):
-    if input.dtype == core.VarDesc.VarType.FP32 or input.dtype == core.VarDesc.VarType.FP32:
-        return input
-    out = block.create_var(dtype="float32", shape=[1])
-    op = block.append_op(
-        inputs={"X": input},
-        outputs={"Out": out},
-        type='cast',
-        attrs={
-            'out_dtype': core.VarDesc.VarType.FP32,
-            'in_dtype': input.dtype
-        })
-    op.desc.infer_var_type(block.desc)
-    op.desc.infer_shape(block.desc)
-    return out
-
-
 def append_loss_ops(block, output_names):
     mean_inputs = list(map(block.var, output_names))
-    mean_inputs = [var_cast(block, x) for x in mean_inputs]
 
     if len(mean_inputs) == 1:
         loss = block.create_var(dtype=mean_inputs[0].dtype, shape=[1])