shell32/tests: Fix IShellFolderView test failure under Windows 7.

[Austin Lund]

On 8 November 2010 11:49, James McKenzie <jjmckenzie51 at earthlink.net> wrote:
> Thus a second test case needs to be
> developed that is only for Windows7 and the remaining test skipped for
> Windows7.   Something like what we do for Unicode tests for Windows9x/ME.

Isn't the rule that the tests should only check windows versions
before testing behaviour if that is what applications to a similar
thing, otherwise the test isn't required?