Qual atalho para retirar as linhas guias ?

Please remember to mark @Bojan Živković11378569 ’s post as the »Correct Answer«. 

There is a menu item called New Guide that allows you to assign a keyboard shortcut. You can also record an action step to place the guide if you know where you want it. Later, you can assign a keyboard shortcut to play the action.

@Jorge Gossain Neto you can quickly hide guideline by using keyboard shortcuts:
Mac: Command ;
PC: Control ;

This hides it quickly. Which I do all the time. 

You can't use keyboard shortcuts to make guidelines (that I know off), but you can easily drag out guidelines from rulers. To turn your rulers on:

Mac: Command R
PC: Control R

Place your mouse or cursor on the rulers, click and drag out a guideline. If you don't like the guideline, you can select it (it may turn blue) and delete it, or select it with the 'Move' Tool and  'flick' towards the rulers.