Remove Servlet specific auth from JAX-RS

This is no longer needed after the changes in how challenges are handled.

Partial fix for quarkusio#5419

extensions/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/UnauthorizedExceptionMapper.java

@@ -1,6 +1,5 @@
 package io.quarkus.resteasy.runtime;
 
-import java.lang.reflect.Method;
 import java.util.concurrent.ExecutionException;
 
 import javax.annotation.Priority;
@@ -28,40 +27,8 @@ public class UnauthorizedExceptionMapper implements ExceptionMapper<Unauthorized
 
     private static final Logger log = Logger.getLogger(UnauthorizedExceptionMapper.class.getName());
 
-    //Servlet API may not be present
-    private static final Class<?> HTTP_SERVLET_REQUEST;
-    private static final Class<?> HTTP_SERVLET_RESPONSE;
-    private static final Method AUTHENTICATE;
-
-    static {
-        Class<?> httpServletReq = null;
-        Class<?> httpServletResp = null;
-        Method auth = null;
-        try {
-            httpServletReq = Class.forName("javax.servlet.http.HttpServletRequest");
-            httpServletResp = Class.forName("javax.servlet.http.HttpServletResponse");
-            auth = httpServletReq.getMethod("authenticate", httpServletResp);
-        } catch (Exception ignored) {
-
-        }
-        AUTHENTICATE = auth;
-        HTTP_SERVLET_REQUEST = httpServletReq;
-        HTTP_SERVLET_RESPONSE = httpServletResp;
-    }
-
     @Override
     public Response toResponse(UnauthorizedException exception) {
-        if (HTTP_SERVLET_REQUEST != null) {
-            Object httpServletRequest = ResteasyContext.getContextData(HTTP_SERVLET_REQUEST);
-            if (httpServletRequest != null) {
-                Object httpServletResponse = ResteasyContext.getContextData(HTTP_SERVLET_RESPONSE);
-                try {
-                    AUTHENTICATE.invoke(httpServletRequest, httpServletResponse);
-                } catch (Exception e) {
-                    throw new RuntimeException(e);
-                }
-            }
-        }
         RoutingContext context = ResteasyContext.getContextData(RoutingContext.class);
         if (context != null) {
             HttpAuthenticator authenticator = context.get(HttpAuthenticator.class.getName());