Remove LooksLikeCultureButIsnt test
Remove LooksLikeCultureButIsnt test

This test relied on culture-checking code that is no longer valid, since
ce30ce4 removed the concept of IsValidCultureString in favor of the
just-try-it-and-see-what-the-OS says technique which is currently favored.

rainersigwald/msbuild,cdmihai/msbuild,Microsoft/msbuild,chipitsine/msbuild,mono/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,Microsoft/msbuild,AndyGerlicher/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild,mono/msbuild,chipitsine/msbuild,rainersigwald/msbuild,jeffkl/msbuild,Microsoft/msbuild,chipitsine/msbuild,jeffkl/msbuild,sean-gilliam/msbuild,mono/msbuild,jeffkl/msbuild,Microsoft/msbuild,cdmihai/msbuild,sean-gilliam/msbuild,chipitsine/msbuild,cdmihai/msbuild,rainersigwald/msbuild,cdmihai/msbuild,jeffkl/msbuild,AndyGerlicher/msbuild,mono/msbuild