remove unused import

Author: Vladimir Kotal

opengrok-web/src/main/java/org/opengrok/web/api/v1/controller/FileController.java

@@ -35,7 +35,6 @@
 import org.apache.lucene.document.Document;
 import org.apache.lucene.queryparser.classic.ParseException;
 import org.opengrok.indexer.analysis.AbstractAnalyzer;
-import org.opengrok.indexer.configuration.RuntimeEnvironment;
 import org.opengrok.indexer.search.QueryBuilder;
 import org.opengrok.web.api.v1.filter.CorsEnable;
 import org.opengrok.web.api.v1.filter.PathAuthorized;