drm/tegra: fb: Remove gratuituous blank line

This was introduced by mistake in commit 0f7d9052fb ("drm/tegra: Use
new drm_fb_helper functions"). Remove it.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/tegra/fb.c

@@ -341,7 +341,6 @@ fini:
 
 static void tegra_fbdev_exit(struct tegra_fbdev *fbdev)
 {
-
 	drm_fb_helper_unregister_fbi(&fbdev->base);
 	drm_fb_helper_release_fbi(&fbdev->base);