Remove test_image_classification_resnet from mac CI (#15706)

* remove est_image_classification_resnet for mac
test=develop

* increate the timeout
test=develop

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -109,11 +109,12 @@ set_tests_properties(test_parallel_executor_fetch_feed PROPERTIES TIMEOUT 450)
 py_test_modules(test_parallel_executor_transformer MODULES test_parallel_executor_transformer SERIAL)
 if(NOT APPLE)
     py_test_modules(test_image_classification_resnet MODULES test_image_classification_resnet SERIAL)
+    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+        # change the timeout from 600 to 1200, because in debug mode, this test need more time.
+        set_tests_properties(test_image_classification_resnet PROPERTIES TIMEOUT 1200)
+    endif()
 endif()
-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+
-    # change the timeout from 600 to 900, because in debug mode, this test need more time.
-    set_tests_properties(test_image_classification_resnet PROPERTIES TIMEOUT 900)
-endif()
 
 if (WITH_NGRAPH)
     add_subdirectory(ngraph)