Remove unused defines and structure variables that are not
referenced by the code.  If these are needed for future
enhancements then they should be added at that time.
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20191007171157.17813-3-dmurphy@ti.comSigned-off-by: NMark Brown <broonie@kernel.org>