Cleanup: Remove unused --build-dir from profile generation step
Cleanup: Remove unused --build-dir from profile generation step

Context: https://codereview.chromium.org/59673003/#msg8

BUG=
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/65383005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@234511 0039d316-1c4b-4281-b951-d872f2087c98

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