Remove all vaccination info from (nwHacks) application

[sidyakinian]

Description

This PR removes all references to vaccination from portal application.

Other considerations

As a result of this change, new applicants won't have the vaccineInfo field in Firebase – just something to take into account with querying, future work, etc.

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 967e8ff):

https://nwplus-ubc--pr508-remove-vaccination-c-o3ovl6qs.web.app

_{(expires Mon, 16 Oct 2023 04:34:18 GMT)}

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_{Sign: 8c7ea898e009e43455645bc310bcbccfc0f87e48}