dsdt: redundant assignment

[Anton Lindqvist]

Hi,
An assignment introduced in r1.219 looks redundant.

Index: dsdt.c
===================================================================
RCS file: /cvs/src/sys/dev/acpi/dsdt.c,v
retrieving revision 1.231
diff -u -p -r1.231 dsdt.c
--- dsdt.c      16 Feb 2017 18:02:22 -0000      1.231
+++ dsdt.c      25 Mar 2017 21:16:04 -0000
@@ -1261,7 +1261,6 @@ aml_find_node(struct aml_node *node, con
        const char *nn;
 
        SIMPLEQ_FOREACH(child, &node->son, sib) {
-               nn = child->name;
                if ((nn = child->name) != NULL) {
                        if (*nn == AMLOP_ROOTCHAR) nn++;
                        while (*nn == AMLOP_PARENTPREFIX) nn++;