staging: slicoss No need to check pointer in debugfs_remove()

No need to check pointer expicitly since it has been done in debugfs_remove()
Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/slicoss/slicoss.c

@@ -3971,10 +3971,8 @@ static void slic_debug_adapter_create(struct adapter *adapter)
 
 static void slic_debug_adapter_destroy(struct adapter *adapter)
 {
-	if (adapter->debugfs_entry) {
-		debugfs_remove(adapter->debugfs_entry);
-		adapter->debugfs_entry = NULL;
-	}
+	debugfs_remove(adapter->debugfs_entry);
+	adapter->debugfs_entry = NULL;
 }
 
 static void slic_debug_card_create(struct sliccard *card)