Revert "drm/amd/display: dml2 soc dscclk use DPM table clk setting"

[why]
this dscclk use DCN defined per DPM level will cause a DCFCLK increase.
needs to follow up.

This reverts commit 15b95953

Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>