Revert "Keep keyboard lit until the screen is dimmed"

This reverts commit 10f93b040d7e06bfcf7cecc4e59de22e47997d26.
Revert "keyboard: adding functional alt/shift lights"

This reverts commit 6dd016d7b54a9e791999a5192975023dcd7034e5.
Revert "[webkit] Runtime enablement of WebGL"

 * No longer needed, WebGL is on by default if compiled in.

This reverts commit bcc8f733796f3fcd1c2180336960d747a6995f0c.