chore: Remove remaining references to Conversation service

Author: lpatino10

.bumpversion.cfg

@@ -9,8 +9,6 @@ message = Update version numbers from {current_version} -> {new_version}
 
 [bumpversion:file:assistant/README.md]
 
-[bumpversion:file:conversation/README.md]
-
 [bumpversion:file:discovery/README.md]
 
 [bumpversion:file:language-translator/README.md]

.gitignore

@@ -18,7 +18,6 @@ bin/
 docs
 .swagger-codegen-ignore
 .vscode/
-conversation/src/test/java/com/ibm/watson/developer_cloud/conversation/v1/ConversationTest.java
 .swagger-codegen/VERSION
 *.orig
 *.rej

assistant/src/test/java/com/ibm/watson/assistant/v1/AssistantServiceTest.java

@@ -39,15 +39,15 @@ public String getWorkspaceId() {
   @Before
   public void setUp() throws Exception {
     super.setUp();
-    String username = getProperty("conversation.v1.username");
-    String password = getProperty("conversation.v1.password");
-    workspaceId = getProperty("conversation.v1.workspace_id");
+    String username = getProperty("assistant.v1.username");
+    String password = getProperty("assistant.v1.password");
+    workspaceId = getProperty("assistant.v1.workspace_id");
 
     Assume.assumeFalse("config.properties doesn't have valid credentials.",
         (username == null) || username.equals(PLACEHOLDER));
 
     service = new Assistant("2018-07-10");
-    service.setEndPoint(getProperty("conversation.v1.url"));
+    service.setEndPoint(getProperty("assistant.v1.url"));
     service.setUsernameAndPassword(username, password);
     service.setDefaultHeaders(getDefaultHeaders());
   }