SMAAPass: Swap buffers after rendering. (#26928)

* SMAAPass: Swap buffers after rendering.

* Examples: Updated screenshot.

examples/jsm/postprocessing/SMAAPass.js

@@ -110,8 +110,6 @@ class SMAAPass extends Pass {
 			fragmentShader: SMAABlendShader.fragmentShader
 		} );
 
-		this.needsSwap = false;
-
 		this.fsQuad = new FullScreenQuad( null );
 
 	}