chore: drop 'template plan' unused command (#9386)

docs/cli/templates.md

@@ -40,7 +40,6 @@ Templates are written in standard Terraform and describe the infrastructure for
 | [<code>edit</code>](./templates_edit.md)         | Edit the metadata of a template by name.                                       |
 | [<code>init</code>](./templates_init.md)         | Get started with a templated template.                                         |
 | [<code>list</code>](./templates_list.md)         | List all the templates available for the organization                          |
-| [<code>plan</code>](./templates_plan.md)         | Plan a template push from the current directory                                |
 | [<code>pull</code>](./templates_pull.md)         | Download the latest version of a template to a path.                           |
 | [<code>push</code>](./templates_push.md)         | Push a new template version from the current directory or as specified by flag |
 | [<code>versions</code>](./templates_versions.md) | Manage different versions of the specified template                            |

docs/cli/templates_plan.md

@@ -1,11 +0,0 @@
-<!-- DO NOT EDIT | GENERATED CONTENT -->
-
-# templates plan
-
-Plan a template push from the current directory
-
-## Usage
-
-```console
-coder templates plan <directory>
-```