cfmoraes,
Please add this line to the CodeMix settings file to turn off the info :
"javascript.showUnused": false
To open the settings file, go to Window > Preferences > CodeMix > Extensions. Click on top first icon to ‘Open Settings Json’ and add the above line to the settings section in that file and save it. Reopen the JS file and the info messages should go away.
Hope this helps. Please let us know how it works for you.
–Swapna
Genuitec Support