Remove sjcl, which is not being used anymore

Gruntfile.js

@@ -46,7 +46,6 @@ module.exports = function(grunt) {
                         "es": "locale/es/LC_MESSAGES/es",
                         "it": "locale/it/LC_MESSAGES/it",
                         "pt_BR": "locale/pt_BR/LC_MESSAGES/pt_BR", 
-                        "sjcl": "components/sjcl/sjcl",
                         "tinysort": "components/tinysort/src/jquery.tinysort",
                         "underscore": "components/underscore/underscore",
                         "backbone": "components/backbone/backbone",

converse.js

@@ -16,7 +16,6 @@
             "locales",
             "localstorage",
             "tinysort",
-            "sjcl",
             "strophe",
             "strophe.muc",
             "strophe.roster",

main.js

@@ -2,7 +2,6 @@ require.config({
     paths: {
         "jquery": "components/jquery/jquery",
         "locales": "locale/locales",
-        "sjcl": "components/sjcl/sjcl",
         "tinysort": "components/tinysort/src/jquery.tinysort",
         "underscore": "components/underscore/underscore",
         "backbone": "components/backbone/backbone",
@@ -37,6 +36,6 @@ require.config({
     }
 });
 
-require(["components/requirejs/require", "jquery", "converse"], function(require, $, converse) {
+require(["jquery", "converse"], function(require, $, converse) {
     window.converse = converse;
 });

tests_main.js

@@ -3,7 +3,6 @@ require.config({
     paths: {
         "jquery": "components/jquery/jquery",
         "locales": "locale/locales",
-        "sjcl": "components/sjcl/sjcl",
         "tinysort": "components/tinysort/src/jquery.tinysort",
         "underscore": "components/underscore/underscore",
         "backbone": "components/backbone/backbone",