code: public void removeApiImplementor(ApiImplementor impl) {
  		if (!implementors.containsKey(impl.getPrefix())) {
  			logger.warn("Attempting to remove an API implementor not registered, with prefix: " + impl.getPrefix());
  			return;
  		}
  		implementors.remove(impl.getPrefix());
  		for (String shortcut : impl.getApiShortcuts()) {
  			String key = "/" + shortcut;
  			if (this.shortcuts.containsKey(key)) {
  				logger.debug("Removing registered API shortcut: " + shortcut);
  				this.shortcuts.remove(key);
  			}
  		}
  		removeCallBackUrls(impl);
  	}
docs: Removes the given {@code ApiImplementor} from the ZAP API.
  <p>
  Since TODO add version, the callbacks previously created for the implementor are removed as well.
  
  @param impl the implementor that will be removed
  @since 2.1.0
  @see #registerApiImplementor(ApiImplementor)
  @see #getCallBackUrl(ApiImplementor, String)