removed some unused globals

js/index.js

@@ -6,12 +6,9 @@ try { require('./demo') } catch (err) {}
 require('./wifi')
 
 const $ = require('./lib/chibi')
-const { qs, cr } = require('./utils')
-const tr = require('./lang')
+const { qs } = require('./utils')
 
 /* Export stuff to the global scope for inline scripts */
 window.termInit = require('./term')
 window.$ = $
-window.tr = tr
 window.qs = qs
-window.cr = cr