Delete the chinese decription in ctest (#54018)

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

@@ -15,32 +15,26 @@
 import paddle
 
 
-# 定义静态图模型
 def static_model(x, y):
     z = paddle.pow(x, y)
     return z
 
 
 def main():
-    # 开启静态图模式
     paddle.enable_static()
     paddle.set_flags({"FLAGS_check_nan_inf": 1, "FLAGS_check_nan_inf_level": 0})
-    # 定义输入变量和模型输出变量
+
     x_static = paddle.static.data(name='x_static', shape=[3], dtype='float32')
     y_static = paddle.static.data(name='y_static', shape=[3], dtype='float32')
     x_static.stop_gradient = False
     z_static = static_model(x_static, y_static)
 
-    # 计算梯度
     grads_static = paddle.static.gradients(z_static, x_static, y_static)
 
-    # 创建 Executor 对象
     exe_static = paddle.static.Executor(paddle.CPUPlace())
 
-    # 编译计算图
     exe_static.run(paddle.static.default_startup_program())
 
-    # 执行前向计算和反向传播
     grads_val_static = exe_static.run(
         paddle.static.default_main_program(),
         feed={'x_static': [1, 0, 3], 'y_static': [0, 0, 0]},