dragonboard: Drop unsupported hwc.drm properties

The drm_hwcomposer code has changed to use vendor.hwc.drm.* for
the properties values, and thus the values here have gone unused
for awhile.

They seem to be old hold-overs from early db410c development, so
lets just get rid of them.

Reported-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Reported-by: Benjamin Li <benl@squareup.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I942c225d0a3f0da2ec8c805996c706af19ebfa37
1 file changed