Open the image and add a new (empy) layer.
Select the patch tool (J) and be e sure that you choose ' Content aware' and the the checkbox 'Sample all layers' is on.
Drag a circle round the object you want to remove.
Drag your mouse or pen to remove the object.
Sometimes you have to do it in steps or do it several times or use it in combination with for example the clone tool (S)
But its easy and fast and doing a good job in most of the cases.