drm/amd/display: re-enable Dynamic ODM policy

[Why]
Previous disable ODM policy due to underflow issue with sharpener.
Issue is resolved after updating sharpening policy to apply to
both windowed and fullscreen video

[How]
Remove sharpness check disabling Dynamic ODM policy

Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>