Enable CJK RenderText unittest for win7

Uniscribe based fallback fonts got removed and replaced
by the Skia version, which is using DWrite.
Thus, the locale is now supported on win7.

Turn on the test on win7.


Change-Id: Iae4017a8636333e95d3ff771323fe56ba4b48ade
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1877911
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Robert Liao <robliao@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#709178}

ui/gfx/render_text_unittest.cc

@@ -5063,10 +5063,6 @@ TEST_F(RenderTextTest, HarfBuzz_MultiRunsSupportGlyphs) {
 #if defined(OS_WIN)
 // Ensures that locale is used for fonts selection.
 TEST_F(RenderTextTest, CJKFontWithLocale) {
-  // The uniscribe fallback used by win7 is not supporting locale.
-  if (base::win::GetVersion() < base::win::Version::WIN10)
-    return;
-
   const wchar_t kCJKTest[] = L"\u8AA4\u904E\u9AA8";
   static const char* kLocaleTests[] = {"zh-CN", "ja-JP", "ko-KR"};