How to remove applications, files, and folders from the Mac dock.
Find the icon you wish to remove from the Dock.
Click, hold then drag the icon away from the Dock towards the desktop and then release the mouse button. The icon will be deleted with a puff of smoke.
Another way to remove an icon from the Dock is to right click (Control+Click) on the application icon and go to “Options” and “Remove from Dock”. You can also get to that menu by clicking and holding the icon for about 2 seconds.
*Applications being used cannot be removed from the Dock.