drm/i915/dp_mst: Remove stream count assert from intel_dp_check_mst_status()

There doesn't seem to be a reason to assert for a non-negative stream
counter in intel_dp_check_mst_status() in particular, remove it. There
is now an equivalent assert in intel_dp_mst_dec_active_streams().

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250404150310.1156696-4-imre.deak@intel.com

Author: ideak

drivers/gpu/drm/i915/display/intel_dp.c

@@ -5004,8 +5004,6 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 	bool link_ok = true;
 	bool reprobe_needed = false;
 
-	drm_WARN_ON_ONCE(display->drm, intel_dp->mst.active_links < 0);
-
 	for (;;) {
 		u8 esi[4] = {};
 		u8 ack[4] = {};