diff --git a/examples/jsm/modifiers/EdgeSplitModifier.js b/examples/jsm/modifiers/EdgeSplitModifier.js
index c0a129c21ab3d6..60441aaa3820cb 100644
--- a/examples/jsm/modifiers/EdgeSplitModifier.js
+++ b/examples/jsm/modifiers/EdgeSplitModifier.js
@@ -181,12 +181,6 @@ class EdgeSplitModifier {
 
 		if ( geometry.index == null ) {
 
-			if ( BufferGeometryUtils === undefined ) {
-
-				throw new Error( 'THREE.EdgeSplitModifier relies on BufferGeometryUtils' );
-
-			}
-
 			geometry = BufferGeometryUtils.mergeVertices( geometry );
 
 		}
diff --git a/examples/jsm/modifiers/SimplifyModifier.js b/examples/jsm/modifiers/SimplifyModifier.js
index 4483c24d805800..609f688bc9d9e2 100644
--- a/examples/jsm/modifiers/SimplifyModifier.js
+++ b/examples/jsm/modifiers/SimplifyModifier.js
@@ -17,16 +17,6 @@ const _cb = new Vector3(), _ab = new Vector3();
 
 class SimplifyModifier {
 
-	constructor() {
-
-		if ( BufferGeometryUtils === undefined ) {
-
-			throw new Error( 'THREE.SimplifyModifier relies on BufferGeometryUtils' );
-
-		}
-
-	}
-
 	modify( geometry, count ) {
 
 		if ( geometry.isGeometry === true ) {