refactor(buttons): don't set button type attribute from buttons
refactor(buttons): don't set button type attribute from buttons

this is duplicated code, it is already set in toolbar

driftyco/ionic,TillaTheHun0/ionic,driftyco/ionic,driftyco/ionic,TillaTheHun0/ionic,TillaTheHun0/ionic,TillaTheHun0/ionic,driftyco/ionic,driftyco/ionic