drm/i915/dp: Remove debug dependency of DPCD SW/HW revision read

Performing DPCD AUX reads based on debug settings may introduce obscure
bugs in other places that depend on the read being done (or being not
done). To reduce the uncertainty perform the reads unconditionally.

Cc: Mika Kahola <mika.kahola@intel.com>
Suggested-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NImre Deak <imre.deak@intel.com>
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477326811-30431-3-git-send-email-imre.deak@intel.com

drivers/gpu/drm/i915/intel_dp.c

@@ -1456,9 +1456,6 @@ static void intel_dp_print_hw_revision(struct intel_dp *intel_dp)
 	uint8_t rev;
 	int len;
 
-	if ((drm_debug & DRM_UT_KMS) == 0)
-		return;
-
 	if (!drm_dp_is_branch(intel_dp->dpcd))
 		return;
 
@@ -1474,9 +1471,6 @@ static void intel_dp_print_sw_revision(struct intel_dp *intel_dp)
 	uint8_t rev[2];
 	int len;
 
-	if ((drm_debug & DRM_UT_KMS) == 0)
-		return;
-
 	if (!drm_dp_is_branch(intel_dp->dpcd))
 		return;