drm/i915: Drop usless master_transcoder assignments

The entire crtc state has been reset before readout so
master_transcoder is already set to INVALID.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200313164831.5980-4-ville.syrjala@linux.intel.comReviewed-by: NManasi Navare <manasi.d.navare@intel.com>

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

@@ -9364,7 +9364,6 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
 	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = NULL;
-	pipe_config->master_transcoder = INVALID_TRANSCODER;
 
 	ret = false;
 
@@ -10588,7 +10587,6 @@ static bool ilk_get_pipe_config(struct intel_crtc *crtc,
 
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = NULL;
-	pipe_config->master_transcoder = INVALID_TRANSCODER;
 
 	ret = false;
 	tmp = intel_de_read(dev_priv, PIPECONF(crtc->pipe));