Merge to XFA: Remove unused error variable from CFX_Font::AdjustMMParams

Also fixes a potential memory leak.

R=tsepez@chromium.org, thestig@chromium.org
BUG=pdfium:156

Review URL: https://codereview.chromium.org/1409973003 .

(cherry picked from commit de49cf173d12fe7a462168e2bf6c44971d7d28f8)

Review URL: https://codereview.chromium.org/1420103002 .
1 file changed