Revert "sf: Always use opengles for screen capture"

This reverts commit 1c445200f5cb6ef4df4cbd4c8227427a12b9f346.
Revert "Add BoardConfig flag TARGET_USES_OPENGLES_FOR_SCREEN_CAPTURE"

This reverts commit a485b1fca934ebfdc60720238cac5341d9acbb7e.