drm/nouveau/dispnv04: Remove some unused functions

Removes some functions that are not used anywhere:
nv04_display_late_takedown() nv04_display_early_init()

This was partially found by using a static code analysis program
called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/dispnv04/disp.c

@@ -31,24 +31,6 @@
 #include "nouveau_encoder.h"
 #include "nouveau_connector.h"
 
-int
-nv04_display_early_init(struct drm_device *dev)
-{
-	/* ensure vblank interrupts are off, they can't be enabled until
-	 * drm_vblank has been initialised
-	 */
-	NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
-	if (nv_two_heads(dev))
-		NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
-
-	return 0;
-}
-
-void
-nv04_display_late_takedown(struct drm_device *dev)
-{
-}
-
 int
 nv04_display_create(struct drm_device *dev)
 {

drivers/gpu/drm/nouveau/dispnv04/disp.h

@@ -90,8 +90,6 @@ nv04_display(struct drm_device *dev)
 }
 
 /* nv04_display.c */
-int nv04_display_early_init(struct drm_device *);
-void nv04_display_late_takedown(struct drm_device *);
 int nv04_display_create(struct drm_device *);
 void nv04_display_destroy(struct drm_device *);
 int nv04_display_init(struct drm_device *);