drm/gma500/cdv: Remove unused tv out paths

Afaik tv out is not available on Cedarview and the code isn't doing
anything so remove it.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210201132617.1233-3-patrik.r.jakobsson@gmail.com

drivers/gpu/drm/gma500/cdv_intel_display.c

@@ -582,7 +582,7 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 	struct gma_clock_t clock;
 	u32 dpll = 0, dspcntr, pipeconf;
 	bool ok;
-	bool is_lvds = false, is_tv = false;
+	bool is_lvds = false;
 	bool is_dp = false;
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct drm_connector *connector;
@@ -603,9 +603,6 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
-		case INTEL_OUTPUT_TVOUT:
-			is_tv = true;
-			break;
 		case INTEL_OUTPUT_ANALOG:
 		case INTEL_OUTPUT_HDMI:
 			break;
@@ -660,12 +657,6 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 	}
 
 	dpll = DPLL_VGA_MODE_DIS;
-	if (is_tv) {
-		/* XXX: just matching BIOS for now */
-/*	dpll |= PLL_REF_INPUT_TVCLKINBC; */
-		dpll |= 3;
-	}
-/*		dpll |= PLL_REF_INPUT_DREFCLK; */
 
 	if (is_dp || is_edp) {
 		cdv_intel_dp_set_m_n(crtc, mode, adjusted_mode);