drm/nouveau: remove 'chan' argument from nouveau_gem_new

Userspace hasn't passed us a channel_hint for a long long time now, and
there isn't actually a need to do so anymore anyway.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 39aee6d..59ad960 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -296,8 +296,8 @@
 	size = mode_cmd.pitch * mode_cmd.height;
 	size = roundup(size, PAGE_SIZE);
 
-	ret = nouveau_gem_new(dev, dev_priv->channel, size, 0,
-			      NOUVEAU_GEM_DOMAIN_VRAM, 0, 0x0000, &nvbo);
+	ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
+			      0, 0x0000, &nvbo);
 	if (ret) {
 		NV_ERROR(dev, "failed to allocate framebuffer\n");
 		goto out;