fix: remove noop templates plan command (#6617)

Co-authored-by: Colin Adler <colin1adler@gmail.com>

docs/cli/coder_templates.md

@@ -35,7 +35,6 @@ coder templates [flags]
 | [<code>edit</code>](./coder_templates_edit)         | Edit the metadata of a template by name.                                       |
 | [<code>init</code>](./coder_templates_init)         | Get started with a templated template.                                         |
 | [<code>list</code>](./coder_templates_list)         | List all the templates available for the organization                          |
-| [<code>plan</code>](./coder_templates_plan)         | Plan a template push from the current directory                                |
 | [<code>pull</code>](./coder_templates_pull)         | Download the latest version of a template to a path.                           |
 | [<code>push</code>](./coder_templates_push)         | Push a new template version from the current directory or as specified by flag |
 | [<code>versions</code>](./coder_templates_versions) | Manage different versions of the specified template                            |

docs/cli/coder_templates_plan.md

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