Remove deprecated windows specific fonts-related histograms

These histograms are no longer used. The timing and count information is
already available into RenderText for every platforms. There is no need
to have a windows specific histograms.

R=robliao@chromium.org

Bug: 1151976
Change-Id: I0c90c44ace8f6607a55112a117a75cdd5b4eb20f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2611585Reviewed-by: Robert Liao <robliao@chromium.org>
Commit-Queue: Etienne Bergeron <etienneb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844176}

ui/gfx/font_fallback_win.cc

@@ -9,7 +9,6 @@
 
 #include "base/macros.h"
 #include "base/memory/singleton.h"
-#include "base/metrics/histogram_macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ -142,19 +141,14 @@ CachedFontLinkSettings* CachedFontLinkSettings::GetInstance() {
 
 const std::vector<Font>* CachedFontLinkSettings::GetLinkedFonts(
     const Font& font) {
-  SCOPED_UMA_HISTOGRAM_LONG_TIMER("FontFallback.GetLinkedFonts.Timing");
   const std::string& font_name = font.GetFontName();
   std::map<std::string, std::vector<Font> >::const_iterator it =
       cached_linked_fonts_.find(font_name);
   if (it != cached_linked_fonts_.end())
     return &it->second;
 
-  SCOPED_UMA_HISTOGRAM_LONG_TIMER(
-      "FontFallback.GetLinkedFonts.CacheMissTiming");
   std::vector<Font>* linked_fonts = &cached_linked_fonts_[font_name];
   QueryLinkedFontsFromRegistry(font, &cached_system_fonts_, linked_fonts);
-  UMA_HISTOGRAM_COUNTS_100("FontFallback.GetLinkedFonts.FontCount",
-                           linked_fonts->size());
   return linked_fonts;
 }