remove committed zip file (aws#4392)

- Also git ignores zip files

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    REMINDER:
    - Read CONTRIBUTING.md first.
    - Add test coverage for your changes.
    - Update the changelog using `npm run newChange`.
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## License

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

Signed-off-by: nkomonen <[email protected]>

Author: nkomonen-amazon

.gitignore

@@ -4,6 +4,7 @@ node_modules
 .vscode-test/
 coverage/
 *.vsix
+*.zip
 *.bk
 **/.DS_Store
 .idea