ACPICA: Removed extraneous code

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
index 280b835..c7b5409 100644
--- a/drivers/acpi/namespace/nswalk.c
+++ b/drivers/acpi/namespace/nswalk.c
@@ -77,9 +77,7 @@
 
 		/* It's really the parent's _scope_ that we want */
 
-		if (parent_node->child) {
-			next_node = parent_node->child;
-		}
+		next_node = parent_node->child;
 	}
 
 	else {