修复 swagger 一直报 favicon.ico 找不到的问题

yudao-gateway/src/main/java/cn/iocoder/yudao/gateway/swagger/SwaggerResourceHandlerFunction.java

@@ -9,13 +9,11 @@ import org.springframework.cloud.gateway.handler.predicate.PredicateDefinition;
 import org.springframework.cloud.gateway.route.RouteDefinition;
 import org.springframework.cloud.gateway.support.NameUtils;
 import org.springframework.http.MediaType;
-import org.springframework.stereotype.Component;
 import org.springframework.web.reactive.function.server.HandlerFunction;
 import org.springframework.web.reactive.function.server.ServerRequest;
 import org.springframework.web.reactive.function.server.ServerResponse;
 import reactor.core.publisher.Mono;
 
-import javax.annotation.Resource;
 import java.util.*;
 
 /**