This reverts commit 
072030b1783056b5de8b0fac5303a5e9dbc6cfde.
This is no longer necessary when using newer DMUB F/W.
Cc: stable@vger.kernel.org
Cc: Sean Wang <sean.ns.wang@amd.com>
Cc: Marc Rossi <Marc.Rossi@amd.com>
Cc: Hamza Mahfooz <Hamza.Mahfooz@amd.com>
Cc: Tsung-hua (Ryan) Lin <Tsung-hua.Lin@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
                                ((dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x08) ||
                                (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x07)))
                                isPSRSUSupported = false;
-                       else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
-                               isPSRSUSupported = false;
                        else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
                                isPSRSUSupported = true;
                }