(unparse_name): len can't be zero, so, don't check for that

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12536 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/krb5/principal.c

@@ -323,7 +323,7 @@ unparse_name(krb5_context context,
     }
     len++;
     *name = malloc(len);
-    if(len != 0 && *name == NULL) {
+    if(*name == NULL) {
 	krb5_set_error_string (context, "malloc: out of memory");
 	return ENOMEM;
     }