WebGLRenderLists/WebGLRenderStats: Simplified.

src/renderers/webgl/WebGLRenderLists.js

@@ -181,8 +181,7 @@ function WebGLRenderLists( properties ) {
 		if ( lists.has( scene ) === false ) {
 
 			list = new WebGLRenderList( properties );
-			lists.set( scene, [] );
-			lists.get( scene ).push( list );
+			lists.set( scene, [ list ] );
 
 		} else {
 

src/renderers/webgl/WebGLRenderStates.js

@@ -68,8 +68,7 @@ function WebGLRenderStates( extensions, capabilities ) {
 		if ( renderStates.has( scene ) === false ) {
 
 			renderState = new WebGLRenderState( extensions, capabilities );
-			renderStates.set( scene, [] );
-			renderStates.get( scene ).push( renderState );
+			renderStates.set( scene, [ renderState ] );
 
 		} else {