[grilo-plugins] lua-factory: Remove unused variable in XML parser

[Bastien Nocera <hadess src gnome org>]

commit 8c5969e2f14fc4fec2fa3e76f2ffe962f51bdda5
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Oct 10 11:08:22 2017 +0200

    lua-factory: Remove unused variable in XML parser
    
    The variable assignment wasn't used, and "node" was already assigned to
    either the root node, or one of its children earlier in the function.
    
    Caught by covscan:
    grilo-plugins-0.3.4/src/lua-factory/lua-library/lua-xml.c:88: assigned_pointer: Assigning value from 
"is_root_node ? node : node->children" to "node" here, but that stored value is overwritten before it can be 
used.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788757

 src/lua-factory/lua-library/lua-xml.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/lua-factory/lua-library/lua-xml.c b/src/lua-factory/lua-library/lua-xml.c
index 9e1f9b0..b4031d8 100644
--- a/src/lua-factory/lua-library/lua-xml.c
+++ b/src/lua-factory/lua-library/lua-xml.c
@@ -86,10 +86,9 @@ build_table_recursively (lua_State  *L,
       lua_createtable (L, len, 0);
       for (i = 0; i < len; i++) {
         node = it->data;
-        node = (is_root_node) ? node : node->children;
         lua_pushinteger (L, i + 1);
         lua_newtable (L);
-        build_table_from_xml_reader (L, doc, it->data);
+        build_table_from_xml_reader (L, doc, node);
         lua_settable(L, -3);
         it = it->next;
       }