fix

Author: surbhigarg92

google-cloud-spanner/src/test/java/com/google/cloud/spanner/IntegrationTestEnv.java

@@ -110,7 +110,6 @@ protected void before() throws Throwable {
 
     SpannerOptions options = config.spannerOptions();
     String instanceProperty = System.getProperty(TEST_INSTANCE_PROPERTY, "");
-    instanceProperty = "projects/span-cloud-testing/instances/alka-testing";
     InstanceId instanceId;
     if (!instanceProperty.isEmpty() && !alwaysCreateNewInstance) {
       instanceId = InstanceId.of(instanceProperty);