yield blocks never need an anchor

src/generators/dom/visitors/YieldTag.js

@@ -1,9 +1,6 @@
 export default function visitYieldTag ( generator, block, state ) {
-	const anchor = `yield_anchor`;
-	block.createAnchor( anchor, state.parentNode );
-
 	block.builders.mount.addLine(
-		`${block.component}._yield && ${block.component}._yield.mount( ${state.parentNode || block.target}, ${anchor} );`
+		`${block.component}._yield && ${block.component}._yield.mount( ${state.parentNode || block.target}, null );`
 	);
 
 	block.builders.destroy.addLine(