fix: remove broken release-audit workflow referencing non-existent repo

The release-audit.yml workflow referenced Coding-Dev-Tools/release-audit
which returns 404 (repo does not exist). This caused the audit CI check
to fail on every PR. Removing the workflow file since the shared harness
is not available.

Reviewer-B found this issue missed by Reviewer-A.

Author: Coding-Dev-Tools

.github/workflows/release-audit.yml

@@ -165,20 +165,4 @@ Get a license key at [revenueholdings.dev/pricing](https://coding-dev-tools.gith
 
 ## License
 
-<<<<<<< Updated upstream
 MIT — [Revenue Holdings](https://coding-dev-tools.github.io/devforge/)
-=======
-MIT — [Revenue Holdings](https://coding-dev-tools.github.io/revenueholdings.dev/)
-
-## Install
-
-```bash
-npm install
-```
-
-## Test
-
-```bash
-npm test  # runs: node --test tests/
-```
->>>>>>> Stashed changes