Fix false empty-repo check in Homebrew workflow

Author: pipicarapa

.github/workflows/homebrew-formula-pr.yml

@@ -123,7 +123,6 @@ jobs:
           name = payload.get('full_name')
           permissions = payload.get('permissions') or {}
           default_branch = (payload.get('default_branch') or '').strip()
-          repo_size = int(payload.get('size') or 0)
           configured_branch = (os.getenv('CFG_BASE_BRANCH') or '').strip()
           resolved_branch = configured_branch or default_branch
 
@@ -137,9 +136,9 @@ jobs:
                   "Grant contents write access for PR branch creation."
               )
 
-          if repo_size == 0 or not default_branch:
+          if not default_branch:
               raise SystemExit(
-                  "Tap repository appears empty (no default branch). "
+                  "Tap repository has no default branch. "
                   "Initialize it with an initial commit (for example README.md on main) "
                   "and rerun the workflow."
               )