PCI: cpqphp: Remove unnecessary null test before debugfs_remove()

Fix checkpatch warning:
"WARNING: debugfs_remove(NULL) is safe this check is probably not required"

Signed-off-by: Fabian Frederick <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
CC: Ryan Desfosses <[e-mail]>

drivers/pci/hotplug/cpqphp_sysfs.c

···
 
 void cpqhp_remove_debugfs_files(struct controller *ctrl)
 {
-	if (ctrl->dentry)
-		debugfs_remove(ctrl->dentry);
+	debugfs_remove(ctrl->dentry);
 	ctrl->dentry = NULL;
 }