Revert "drm/amd/display: fix dpms_off issue when disabling bios mode"

This reverts commit 58e67bb3.

This patch was reverted, but came back again as
commit 58e67bb3 ("drm/amd/display: fix dpms_off issue when disabling bios mode")
Revert it again as it breaks Asus G513QY / 6800M laptops.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2259
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Zhongwei <Zhongwei.Zhang@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -1296,7 +1296,7 @@ static void disable_vbios_mode_if_required(
 
 					if (pix_clk_100hz != requested_pix_clk_100hz) {
 						dc->link_srv->set_dpms_off(pipe);
-						pipe->stream->dpms_off = true;
+						pipe->stream->dpms_off = false;
 					}
 				}
 			}