Refactor to remove useless function

Author: wooorm

lib/handlers/index.js

@@ -61,7 +61,7 @@ exports.sup =
 exports.sub =
 exports.thead =
 exports.tbody =
-exports.tfoot = children;
+exports.tfoot = all;
 
 exports.address =
 exports.article =
@@ -110,7 +110,3 @@ exports.wbr = require('./wbr');
 exports.q = require('./q');
 
 function ignore() {}
-
-function children(h, node) {
-  return all(h, node);
-}