BEAM-3624 - Remove collapsible if statements

[coheigea]

DESCRIPTION HERE

---

Follow this checklist to help us incorporate your contribution quickly and easily:

• Make sure there is a JIRA issue filed for the change (usually before you start working on it). Trivial changes like typos do not require a JIRA issue. Your pull request should address just this issue, without pulling in other changes.
• Format the pull request title like [BEAM-XXX] Fixes bug in ApproximateQuantiles, where you replace BEAM-XXX with the appropriate JIRA issue.
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  • What the pull request does
  • Why it does it
  • How it does it
  • Why this approach
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[kennknowles]

I appreciate your diligence in filing Jira tickets for little code cleanups :-) but you don't have to go through the trouble in that case.

However, please do always replace the "DESCRIPTION HERE" with a little commentary on the pull request.

[lukecwik]

Thanks for the contribution.

[coheigea]

@kennknowles understood, thanks!