node test: Remove add_dependencies().

docs/testing-with-node.md

@@ -94,9 +94,6 @@ like the following toward the top of your test file:
 >     zrequire('stream_data');
 >     zrequire('Filter', 'js/filter');
 
-(Deprecation note: you may see code where we use `add_dependencies` or
-direct `require` statements.  We should use `zrequire` instead.)
-
 For modules that you want to completely stub out, please use a pattern
 like this:
 

frontend_tests/.eslintrc.json

@@ -4,7 +4,6 @@
     },
     "globals": {
 	"assert": false,
-	"add_dependencies": false,
 	"casper": false,
 	"document": false,
 	"set_global": false,

frontend_tests/zjsunit/index.js

@@ -16,7 +16,6 @@ if (_.isEmpty(files)) {
 var namespace = require('./namespace.js');
 global.set_global = namespace.set_global;
 global.patch_builtin = namespace.patch_builtin;
-global.add_dependencies = namespace.add_dependencies;
 global.zrequire = namespace.zrequire;
 global.stub_out_jquery = namespace.stub_out_jquery;
 global.with_overrides = namespace.with_overrides;

frontend_tests/zjsunit/namespace.js

@@ -30,12 +30,6 @@ exports.zrequire = function (name, fn) {
     return obj;
 };
 
-exports.add_dependencies = function (dct) {
-    _.each(dct, function (fn, name) {
-        exports.zrequire(name, fn);
-    });
-};
-
 exports.restore = function () {
     dependencies.forEach(function (name) {
         delete global[name];