Polish smoke test with removal of View support in Couchbase

See gh-21383

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-data-couchbase/src/main/java/smoketest/data/couchbase/UserRepository.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,10 +16,8 @@
 
 package smoketest.data.couchbase;
 
-import org.springframework.data.couchbase.core.query.ViewIndexed;
 import org.springframework.data.couchbase.repository.CouchbaseRepository;
 
-@ViewIndexed(designDoc = "user", viewName = "all")
 public interface UserRepository extends CouchbaseRepository<User, String> {
 
 }