Remove more dead code in applyProperty(CSSPropertyFont)
Remove more dead code in applyProperty(CSSPropertyFont)

The FontValue handling code has been dead since
http://trac.webkit.org/changeset/100273

If this code were not dead, it would be exercised
by the fast/canvas/crash-set-font.html test
added by jchaffraix in
http://trac.webkit.org/changeset/96122

BUG=237268
R=dglazkov@chromium.org

Review URL: https://codereview.chromium.org/19678002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@154428 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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