remove temporary keychain (unneeded)

.gitea/workflows/testflight.yml

@@ -33,25 +33,6 @@ jobs:
             brew install xcodegen
           fi
 
-      - name: Prepare Runner Keychain
-        env:
-          HOME: /var/lib/act_runner
-        run: |
-          set -euo pipefail
-          mkdir -p "${HOME}/Library/Keychains"
-
-          login_keychain="${HOME}/Library/Keychains/login.keychain"
-          if [ ! -f "${login_keychain}-db" ]; then
-            security create-keychain -p "" "${login_keychain}"
-          fi
-
-          security unlock-keychain -p "" "${login_keychain}" 2>/dev/null || \
-            security unlock-keychain -p "sybil-ci-keychain-password" "${login_keychain}" 2>/dev/null || true
-          security default-keychain -d user -s "${login_keychain}"
-          security list-keychains -d user -s "${login_keychain}-db"
-          security delete-keychain "${HOME}/Library/Keychains/sybil_ci_keychain" >/dev/null 2>&1 || true
-          rm -f "${HOME}/Library/Keychains/sybil_ci_keychain" "${HOME}/Library/Keychains/sybil_ci_keychain-db"
-
       - name: Upload to TestFlight
         working-directory: ios
         env: