Fix master.cfg syntax error.
Fix master.cfg syntax error.

Delete useless variable while I'm here (it's needed at
compile time, not gyp time).

TBR=maruel
Review URL: https://chromiumcodereview.appspot.com/9965109

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@130385 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build