vga_switcheroo: Remove unnecessary checks

debugfs_remove() gracefully ignores NULL parameters, so the explicit
checks can be removed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index c777146..2106066 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -525,14 +525,11 @@
 
 static void vga_switcheroo_debugfs_fini(struct vgasr_priv *priv)
 {
-	if (priv->switch_file) {
-		debugfs_remove(priv->switch_file);
-		priv->switch_file = NULL;
-	}
-	if (priv->debugfs_root) {
-		debugfs_remove(priv->debugfs_root);
-		priv->debugfs_root = NULL;
-	}
+	debugfs_remove(priv->switch_file);
+	priv->switch_file = NULL;
+
+	debugfs_remove(priv->debugfs_root);
+	priv->debugfs_root = NULL;
 }
 
 static int vga_switcheroo_debugfs_init(struct vgasr_priv *priv)