Update instructions for checking out pull requests

Removed example for fetching a pull request locally.

Author: maxhild

content/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally.md

@@ -70,12 +70,6 @@ Anyone can work with a previously opened pull request to continue working on it,
    ```shell
    git fetch origin pull/ID/head:BRANCH_NAME
    ```
-   
-   For pull request #123, creating a local branch named `test_branch`, this would become:
-   
-   ```shell
-   git fetch origin pull/123/head:test_branch
-   ```
 
 1. Switch to the new branch that's based on this pull request: