drm/print: Delete a few unused shouting macros

We want to go over to the new lowercase ones, encourage that a bit
more.

v2: Remove the accidentally included hunk from some WIP branch this
was based on (Jani&Sam).

Cc: Jani Nikula <jani.nikula@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200214090428.2929833-1-daniel.vetter@ffwll.ch