Remove SK_IGNORE_WIN_EMOJI_FIX and rebaseline.

The Skia change has landed, so remove this compile flag and rebaseline.

BUG=chromium:698492

Change-Id: I9446021ae0ccd908abee40226e81bf6c99819af8
Reviewed-on: https://chromium-review.googlesource.com/1102730Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Ben Wagner <bungeman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567919}

skia/BUILD.gn

@@ -139,8 +139,6 @@ config("skia_library_config") {
     "//third_party/skia/third_party/gif",
   ]
 
-  defines += [ "SK_IGNORE_WIN_EMOJI_FIX" ]
-
   if (is_mac || is_ios) {
     include_dirs += [ "//third_party/skia/include/utils/mac" ]
   }