Revert partially r137894, it is not necessary for xcode and ninja
Revert partially r137894, it is not necessary for xcode and ninja

make and devenv/msbuild are the main culprit here. ninja handles these correctly
so there is no point in clobbering for ninja. Xcode is more correct that not so
it's not useful there too.

R=cmp@chromium.org
BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10392164

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@137904 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build