Revert "drm/radeon: Delay Connector detecting when HPD singals is unstable"

This reverts commit 949658cb.

This causes a blank screen on boot.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3696


Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Shixiong Ou <oushixiong@kylinos.cn>
Cc: stable@vger.kernel.org