Revert the part of r90660 that enables building ppapi examples on win.
Revert the part of r90660 that enables building ppapi examples on win.

That change broke the Win(clobber) and WinShared(dbg) builds in the compile
phase.  Examples:
http://build.chromium.org/p/chromium/builders/Win/builds/5309
http://build.chromium.org/p/chromium/builders/Win%20Builder%20%28dbg%29%28shared%29/builds/9605

BUG=54005
TEST=not so much, since the trybots don't build all.

Review URL: http://codereview.chromium.org/7230039

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@90712 0039d316-1c4b-4281-b951-d872f2087c98

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