Cleanup: Remove unnecessary double-semicolons.

The entries were found by the following command line:

$ find . -regex ".*\.[cChH]\(pp\)?" | xargs git grep -e ';;' --and --not
-e 'for *(.*;;'

Which is a combination of http://stackoverflow.com/a/3858879 and
http://gitster.livejournal.com/27674.html

BUG=None
R=mtklein@google.com

Review URL: https://codereview.chromium.org/1088763005
diff --git a/src/ports/SkTypeface_win_dw.cpp b/src/ports/SkTypeface_win_dw.cpp
index 6650751..f445578 100644
--- a/src/ports/SkTypeface_win_dw.cpp
+++ b/src/ports/SkTypeface_win_dw.cpp
@@ -366,7 +366,7 @@
     } else {
         info->fType = SkAdvancedTypefaceMetrics::kOther_Font;
         info->fItalicAngle = 0;
-        info->fAscent = dwfm.ascent;;
+        info->fAscent = dwfm.ascent;
         info->fDescent = dwfm.descent;
         info->fStemV = 0;
         info->fCapHeight = dwfm.capHeight;
@@ -380,7 +380,7 @@
     AutoTDWriteTable<SkOTTableOS2> os2Table(fDWriteFontFace.get());
     if (!headTable.fExists || !postTable.fExists || !hheaTable.fExists || !os2Table.fExists) {
         info->fItalicAngle = 0;
-        info->fAscent = dwfm.ascent;;
+        info->fAscent = dwfm.ascent;
         info->fDescent = dwfm.descent;
         info->fStemV = 0;
         info->fCapHeight = dwfm.capHeight;