[KYUUBI #6970] [DOC] Fix "nonexisting document" issues

### Why are the changes needed?

The PR fixes `nonexisting document` issues:
```shell
./kyuubi/docs/client/advanced/features/index.rst:19: WARNING: toctree contains reference to nonexisting document 'client/advanced/features/engine_resources' [toc.not_readable]

./kyuubi/docs/client/odbc/index.rst:20: WARNING: toctree contains reference to nonexisting document 'client/odbc/todo' [toc.not_readable]
./kyuubi/docs/client/thrift/index.rst:20: WARNING: toctree contains reference to nonexisting document 'client/thrift/hive_beeline' [toc.not_readable]

./kyuubi/docs/index.rst:189: WARNING: toctree contains reference to nonexisting document 'sql/index' [toc.not_readable]
./kyuubi/docs/quick_start/index.rst:23: WARNING: toctree contains reference to nonexisting document 'quick_start/quick_start_with_beeline' [toc.not_readable]
```

### How was this patch tested?

Checked that there are no `nonexisting document` warnings during the documentation build process.
```shell
make html
```

### Was this patch authored or co-authored using generative AI tooling?

No

Closes #6970 from dnskr/doc-fix-nonexisting-document.

Closes #6970

a7c2b3617 [dnskr] [DOC] Fix "nonexisting document" issues

Authored-by: dnskr <dnskrv88@gmail.com>
Signed-off-by: Kent Yao <yao@apache.org>

docs/client/index.rst

@@ -31,9 +31,7 @@ In addition, APIs like REST, Thrift, etc., allow developers to access kyuubi dir
     jdbc/index
     cli/index
     bi_tools/index
-    odbc/index
-    thrift/index
     rest/index
     ui/index
     python/index
-    advanced/index
+    advanced/index

docs/client/odbc/index.rst

@@ -1,24 +0,0 @@
-.. 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.
-
-
-ODBC Drivers
-============================
-
-.. toctree::
-    :maxdepth: 2
-
-    todo
-

docs/client/thrift/index.rst

@@ -1,24 +0,0 @@
-.. 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.
-
-
-Thrift APIs
-===========
-
-.. toctree::
-    :maxdepth: 2
-
-    hive_beeline
-

docs/index.rst

@@ -192,7 +192,6 @@ What's Next
    :glob:
 
    Clients & APIs <client/index>
-   SQL References <sql/index>
 
 .. toctree::
    :caption: Extension Guide

docs/quick_start/index.rst

@@ -25,6 +25,4 @@ Quick Start
 
     quick_start
     quick_start_with_helm
-    quick_start_with_beeline
     quick_start_with_jdbc
-