Revert refactoring of CSSProperty .in files

Source/build/scripts/make_css_property_metadata.py

-#!/usr/bin/env python
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import sys
-
-import css_properties
-import in_generator
-import template_expander
-
-
-class CSSPropertyMetadataWriter(css_properties.CSSProperties):
-    def __init__(self, in_file_path):
-        super(CSSPropertyMetadataWriter, self).__init__(in_file_path)
-        self._outputs = {'CSSPropertyMetadata.cpp': self.generate_css_property_metadata_cpp}
-
-    @template_expander.use_jinja('CSSPropertyMetadata.cpp.tmpl')
-    def generate_css_property_metadata_cpp(self):
-        return {
-            'properties': self._properties,
-            'switches': [('animatable', 'isAnimatableProperty'),
-                         ('inherited', 'isInheritedProperty'),
-                        ],
-        }
-
-
-if __name__ == '__main__':
-    in_generator.Maker(CSSPropertyMetadataWriter).main(sys.argv)