Update native app setup step (#5661)

## What are you changing in this pull request and why?

Update the setup step for the dbt Snowflake Native App

## Checklist
- [x] Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
so my content adheres to these guidelines.
- [x] For [docs
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#about-versioning),
review how to [version a whole
page](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
and [version a block of
content](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#versioning-blocks-of-content).
- [x] Needs review from PM
- [x] Needs review from product eng

Author: nghi-ly

website/docs/docs/cloud-integrations/set-up-snowflake-native-app.md

@@ -51,10 +51,6 @@ Configure dbt Cloud and Snowflake Cortex to power the **Ask dbt** chatbot.
 
     <Lightbox src="/img/docs/cloud-integrations/semantic_layer_configuration.png" width="100%" title="Semantic Layer credentials"/>
 
-1. Identify the default database the environment is connecting to. 
-    1. Select **Deploy > Environments** from the top navigation bar. From the environments list, select the one that was identified in the **Semantic Layer Configuration Details** panel. 
-    1. On the environment's page, click **Settings**. Scroll to the section **Deployment connection**. The listed database is the default for your environment and is also where you will create the schema. Save this information in a temporary location to use later on. 
-
 1. In Snowflake, verify that your SL and deployment user has been granted permission to use Snowflake Cortex. For more information, refer to [Required Privileges](https://docs.snowflake.com/en/user-guide/snowflake-cortex/llm-functions#required-privileges) in the Snowflake docs. 
 
     By default, all users should have access to Snowflake Cortex. If this is disabled for you, open a Snowflake SQL worksheet and run these statements:
@@ -68,15 +64,6 @@ Configure dbt Cloud and Snowflake Cortex to power the **Ask dbt** chatbot.
 
     Make sure to replace `SNOWFLAKE.CORTEX_USER`, `DEPLOYMENT_USER`, and `SL_USER` with the appropriate strings for your environment.
 
-1. Create a schema `dbt_sl_llm` in the deployment database. The deployment user needs write access to create the necessary tables in this schema and the SL user needs only read access to it. Open a Snowflake SQL worksheet and run these statements: 
-
-    ```sql
-    create schema YOUR_DEPLOYMENT_DATABASE.dbt_sl_llm;
-    grant select on schema dbt_sl_llm to role SL_USER;
-    ```
-
-    Make sure to replace `YOUR_DEPLOYMENT_DATABASE` and `SL_USER` with the appropriate strings for your environment.
-
 ## Configure dbt Cloud 
 Collect three pieces of information from dbt Cloud to set up the application.