remove unused property

src/generators/dom/preprocess.ts

@@ -411,7 +411,6 @@ const preprocessors = {
 			);
 
 			node._state = getChildState(state, {
-				isTopLevel: false,
 				parentNode: node.var,
 				parentNodes: block.getUniqueName(`${node.var}_nodes`),
 				parentNodeName: node.name,

src/generators/dom/visitors/IfBlock.ts

@@ -145,7 +145,6 @@ function simple(
 		var ${name} = (${branch.condition}) && ${branch.block}(${params}, #component);
 	`);
 
-	const isTopLevel = !state.parentNode;
 	const mountOrIntro = branch.hasIntroMethod ? 'i' : 'm';
 	const targetNode = state.parentNode || '#target';
 	const anchorNode = state.parentNode ? 'null' : 'anchor';
@@ -248,7 +247,6 @@ function compound(
 		var ${name} = ${current_block_type_and}${current_block_type}(${params}, #component);
 	`);
 
-	const isTopLevel = !state.parentNode;
 	const mountOrIntro = branches[0].hasIntroMethod ? 'i' : 'm';
 
 	const targetNode = state.parentNode || '#target';
@@ -347,7 +345,6 @@ function compoundWithOutros(
 		`);
 	}
 
-	const isTopLevel = !state.parentNode;
 	const mountOrIntro = branches[0].hasIntroMethod ? 'i' : 'm';
 	const targetNode = state.parentNode || '#target';
 	const anchorNode = state.parentNode ? 'null' : 'anchor';