Removed old unused console logs from the code.

bigbluebutton-html5/app/client/main.js

bigbluebutton-html5/app/client/views/whiteboard/slide.js

...luebutton-html5/app/client/views/whiteboard/whiteboard.js

...-html5/app/client/whiteboard_models/whiteboard_ellipse.js

...on-html5/app/client/whiteboard_models/whiteboard_paper.js

...ton-html5/app/client/whiteboard_models/whiteboard_text.js