diff --git a/com.b2international.snomed.ecl.ide/src/com/b2international/snomed/ecl/ide/highlighting/EclHighlightingStyleToTokenMapper.java b/com.b2international.snomed.ecl.ide/src/com/b2international/snomed/ecl/ide/highlighting/EclHighlightingStyleToTokenMapper.java
deleted file mode 100644
index ba27037..0000000
--- a/com.b2international.snomed.ecl.ide/src/com/b2international/snomed/ecl/ide/highlighting/EclHighlightingStyleToTokenMapper.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2021 B2i Healthcare Pte Ltd, http://b2i.sg
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.b2international.snomed.ecl.ide.highlighting;
-
-import java.util.List;
-import java.util.Set;
-
-import org.eclipse.xtext.ide.server.semanticHighlight.ISemanticHighlightingStyleToTokenMapper;
-
-/**
- * Translates highlighting style IDs to TextMate scopes.
- * <p>
- * As ECL is using scope IDs internally, this is a direct conversion.
- * 
- * @since ECL 1.5
- */
-public class EclHighlightingStyleToTokenMapper implements ISemanticHighlightingStyleToTokenMapper {
-
-	private static final Set<String> ALL_STYLE_IDS = Set.of(
-		EclHighlightingRuleIDs.COMMENT_RULE_ID,
-		EclHighlightingRuleIDs.CONSTANT_LANGUAGE_RULE_ID,
-		EclHighlightingRuleIDs.CONSTANT_NUMERIC_INTEGER_ID,
-		EclHighlightingRuleIDs.CONSTANT_NUMERIC_INTEGER_OTHER_ID,
-		EclHighlightingRuleIDs.KEYWORD_OPERATOR_RULE_ID,
-		EclHighlightingRuleIDs.KEYWORD_OTHER_RULE_ID,
-		EclHighlightingRuleIDs.STRING_QUOTED_OTHER_RULE_ID,
-		EclHighlightingRuleIDs.STRING_QUOTED_RULE_ID
-	);
-
-	@Override
-	public List<String> toScopes(String styleId) {
-		return List.of(styleId);
-	}
-
-	@Override
-	public Set<String> getAllStyleIds() {
-		return ALL_STYLE_IDS;
-	}
-}