Remove no longer needed instrumentation in RenderTextWin.

ui/gfx/render_text_win.cc

Index: ui/gfx/render_text_win.cc
===================================================================
--- ui/gfx/render_text_win.cc	(revision 260135)
+++ ui/gfx/render_text_win.cc	(working copy)
@@ -1009,13 +1009,6 @@
 
     if (run->glyph_count > 0) {
       run->advance_widths.reset(new int[run->glyph_count]);
-      // TODO(asvitkine): Temporary instrumentation to debug a double-free
-      // crash where we're seeing these two being equal inexplicably. Hitting
-      // this implies that the malloc book-keeping is corrupt and it returned
-      // the same pointer for two different allocs, which we can debug further.
-      // http://crbug.com/348103
-      CHECK_NE(static_cast<void*>(run->logical_clusters.get()),
-               static_cast<void*>(run->advance_widths.get()));
       run->offsets.reset(new GOFFSET[run->glyph_count]);
       hr = ScriptPlace(cached_hdc_,
                        &run->script_cache,