Update ControllerWriter.java

Author: SentryMan

http-generator-javalin/src/main/java/io/avaje/http/generator/javalin/ControllerWriter.java

@@ -2,7 +2,6 @@
 
 import java.io.IOException;
 import java.util.Map;
-import java.util.Set;
 
 import io.avaje.http.generator.core.BaseControllerWriter;
 import io.avaje.http.generator.core.Constants;