Improve support of Webflux with Functional Endpoints

Author: bnasslahsen

springdoc-openapi-webflux-core/src/main/java/org/springdoc/webflux/api/OpenApiResource.java

@@ -33,7 +33,6 @@
 import io.swagger.v3.core.util.Yaml;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.models.OpenAPI;
-import org.apache.commons.lang3.ArrayUtils;
 import org.springdoc.api.AbstractOpenApiResource;
 import org.springdoc.core.AbstractRequestBuilder;
 import org.springdoc.core.GenericResponseBuilder;
@@ -44,15 +43,13 @@
 import org.springdoc.core.annotations.RouterOperations;
 import org.springdoc.core.customizers.OpenApiCustomiser;
 import org.springdoc.core.customizers.OperationCustomizer;
-import org.springdoc.core.models.RouterFunctionData;
 import reactor.core.publisher.Mono;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.ApplicationContext;
 import org.springframework.http.MediaType;
 import org.springframework.http.server.reactive.ServerHttpRequest;
-import org.springframework.util.CollectionUtils;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;