drm/amd/display: dc: Remove unused display_mode_vba.c

We're currently not using this.

v2: More files and includes to remove.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
7 files changed