Platform: Delete an unused astyle output file

[fkjagodzinski]

Summary of changes

Remove an unused file from the platform dir. It looks like an output from the astyle run; it's not needed in out repo.

Impact of changes

Migration actions required

Documentation

---

Pull request type

[x] Patch update (Bug fix / Target update / Docs update / Test update / Refactor)
[] Feature update (New feature / Functionality change / New API)
[] Major update (Breaking change E.g. Return code change / API behaviour change)

---

Test results

[x] No Tests required for this change (E.g docs only update)
[] Covered by existing mbed-os tests (Greentea or Unittest)
[] Tests / results supplied as part of this PR

---

Reviewers

@0xc0170

---

[ciarmcom]

@fkjagodzinski, thank you for your changes.
@0xc0170 @ARMmbed/mbed-os-core @ARMmbed/mbed-os-maintainers please review.

[0xc0170]

CI started

[mbed-ci]

Test run: SUCCESS

Summary: 11 of 11 test jobs passed
Build number : 1
Build artifacts