fix: remove invalid clone configuration

The LFS warning is non-fatal. Removing the incorrect clone config
that was causing linter errors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.woodpecker/pr.yml

@@ -2,10 +2,6 @@
 when:
   - event: pull_request
 
-clone:
-  git:
-    lfs: false
-
 steps:
   - name: restore
     image: mcr.microsoft.com/dotnet/sdk:10.0-preview