[SYCL][PostLink] Fix Coverity issues in SYCLPostLink.cpp (#21573)
The below summary is generated by Claud but I followed the human in the
middle policy to review each and every step that AI made.
## Summary
This PR fixes critical Coverity static analysis issues in
`SYCLPostLink.cpp`:
### Issues Fixed
1. **Memory Leak** - Fixed resource leak in `performPostLinkProcessing`
- Removed unnecessary `MD.release()` call at line 184 that was leaking
`ModuleDesc` pointer
- The `unique_ptr` now properly manages memory cleanup automatically
### Changes Made
- `lib/SYCLPostLink/SYCLPostLink.cpp`:
- Line 183: Removed `MD.release();` that was causing memory leak
## Test Plan
- ✅ Built successfully using `python buildbot/compile.py`
- ✅ No compilation errors or warnings
- ✅ All 3984 build steps completed successfully
- ✅ Code properly deployed to toolchain
Assisted-by: Claude AI
---------
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
