ci(woodpecker): remove submodule step

.woodpecker.yml

@@ -1,15 +1,6 @@
 when:
   - branch: main
 
-clone:
-  git:
-    image: woodpeckerci/plugin-git
-    settings:
-      recursive: true
-      submodule_update_remote: true
-      submodule_override:
-        src/content: https://codeberg.org/aleidk/blog-content.git
-
 steps:
   build-and-publish:
     image: node:20-alpine