Revert "Frameworks:  Allow Custom Icon Tinting Option (1/2)"

This reverts commit 1adde7a3e2ea505bbb58889490c8ee96d34b0a68.

Revert "SystemUI: tint alternate icons (small menu, alt back, arrow keys)"

This reverts commit a0554291e6727f06fa17e7acc1355507ccdcaf8b.

Revert "SystemUI: don't add tint to app icons or custom images"

This reverts commit 338d98d1be4fb239308f9c3e6787858131b0c8e3.