drm/i915: Drop redundant NULL check

intel_bios_get_dsc_params() is only called from
gen11_dsi_dsc_compute_config() and it always passes a non-NULL
crtc_state in. Drop the redundant check.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231207193441.20206-4-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -3475,8 +3475,7 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 			if (!devdata->dsc)
 				return false;
 
-			if (crtc_state)
-				fill_dsc(crtc_state, devdata->dsc, dsc_max_bpc);
+			fill_dsc(crtc_state, devdata->dsc, dsc_max_bpc);
 
 			return true;
 		}