docs: remove hillshade command from readme

templates/topo-imagery/README.md

@@ -3,7 +3,6 @@
 ## Contents:
 
 - [Standardise Validate](##topo-imagery/standardise-validate)
-- [Generate Hillshade](##topo-imagery/generate-hillshade)
 
 ## topo-imagery/standardise-validate - `tpl-ti-standardise-validate`
 
@@ -57,52 +56,3 @@ volumes:
   - name: ephemeral
     emptyDir: {}
 ```
-
-## topo-imagery/generate-hillshade - `tpl-create-hillshade`
-
-Template for creating hillshades from TIFFs (DEM).  
-See [generate_hillshade.py](https://github.com/linz/topo-imagery/pull/1253)
-This `WorkflowTemplate` is also calling other templates in order to create the inputs of the `linz/topo-imagery/generate_hillshade.py` script:
-
-1. `tile-index-validate` to create a list of tiles with their source TIFF files
-2. `group` to split the list created into grouped tiles for parallel processing
-
-It allows generating multiple types of hillshade from the same source TIFF files, as the `preset` parameter expects a list of hillshade presets.
-
-### Template usage
-
-```yaml
-- name: create-hillshade
-  templateRef:
-    name: tpl-create-hillshade
-    template: main
-  arguments:
-    parameters:
-      - name: source
-        value: 's3://nz-elevation/new-zealand/new-zealand-contour/dem_8m/2193/'
-      - name: scale
-        value: '50000'
-      - name: group
-        value: '2'
-      - name: version_argo_tasks
-        value: 'v4'
-      - name: version_topo_imagery
-        value: 'v7'
-      - name: target
-        value: '{{=sprig.trimSuffix("/", tasks["get-location"].outputs.parameters.location)}}/flat/'
-      - name: preset
-        value: '["greyscale", "igor"]'
-```
-
-The Workflow caller must have the following volume:
-
-```yaml
-volumes:
-  - name: ephemeral
-    emptyDir: {}
-```
-
-### Output
-
-The hillshade TIFF files will be saved in a subdirectory for each of the `preset` within the `target` directory.
-Example: `s3://linz-workflows-scratch/2025-02/03-test-hillshade-94clh/flat/igor/`