public static void unRegisterFont(JComponent component, String fontId) {
		themeManager.unRegisterFont(component, fontId);
	}
Removes the component and font id binding made in a previous call to 
{@link #registerFont(Component, String)}.
<p>
Clients need to call this method if they decide to change the font id being used for a given
component.  Must clients do not need to use this method.

@param component the component to remove
@param fontId the id of the font previously registered
Ghidra/Framework/Gui/src/main/java/generic/theme/Gui.java