Removed a constant now duplicated by r11344 (7c41cf72).
This fixes compilation on MIPS (with the other submitted patches applied).

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10108023
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00