Remove javascript_engine GYP variable. (it's no longer needed in Chromium as of http://crrev.com/100692)
Remove javascript_engine GYP variable.
(it's no longer needed in Chromium as of http://crrev.com/100692)

Review URL: http://breakpad.appspot.com/303001


git-svn-id: 7939527bf0a06ad24ad020f729d5600cb42ed5d7@834 4c0a9323-5329-0410-9bdc-e9ce6186880e

mikewied/breakpad,mikewied/breakpad,mikewied/breakpad,mikewied/breakpad,mikewied/breakpad,mikewied/breakpad