refactor: Remove unnecessary build args in example go app

[aelse]

The removed args solved a common static linking problem in old versions of go, per https://github.com/golang/go/issues/9344#issuecomment-69944514

Signed-off-by: Alexander Else [email protected]

Issue #, if available:

Description of changes:

Remove build flags relating to old go versions from example go app

Testing done:

Built and ran container derived from updated code, using finch build and finch run

• [ x ] I've reviewed the guidance in CONTRIBUTING.md

License Acceptance

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[jlbutler]

thanks for cleaning this up, lgtm!