Remove obsolete information from README-quarkus.md (#2252)

Author: adutra

runtime/service/README-quarkus.md

@@ -0,0 +1,43 @@
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+# Integration tests
+
+Integration tests from the :polaris-tests module can be run against a local Polaris Quarkus instance
+for each supported cloud storage. Set the appropriate environment variables for your target cloud,
+then run the tests as shown below.
+
+For S3:
+```shell
+export INTEGRATION_TEST_S3_PATH="s3://bucket/subpath"
+export INTEGRATION_TEST_S3_ROLE_ARN="your-role-arn"
+./gradlew :polaris-runtime-service:intTest
+```
+For Azure:
+```shell
+export INTEGRATION_TEST_AZURE_PATH="abfss://bucket/subpath"
+export INTEGRATION_TEST_AZURE_TENANT_ID="your-tenant-id"
+./gradlew :polaris-runtime-service:intTest
+``` 
+For GCS:
+```shell
+export INTEGRATION_TEST_GCS_PATH="gs://bucket/subpath"
+export INTEGRATION_TEST_GCS_SERVICE_ACCOUNT="your-service-account"
+./gradlew :polaris-runtime-service:intTest
+```