Examples: Clean up. (#27721)

examples/webgl_lights_spotlight.html

@@ -170,7 +170,7 @@
 				} );
 
 
-				gui.add( params, 'distance', 50, 200 ).onChange( function ( val ) {
+				gui.add( params, 'distance', 0, 20 ).onChange( function ( val ) {
 
 					spotLight.distance = val;