[code-reflection] Integrated: Queries turned out to be overly complex, so I removed them

[Gary Frost]

I added some Queries recently, they wrapped OpHelpers and for a while seemed to simplify matching patterns.

But it turns out using the raw helpers is generally easier.  So I removed them. 

They were overly complex.

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Commit messages:
 - Queries turned out to be overly complex, so I  removed them

Changes: https://git.openjdk.org/babylon/pull/857/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=857&range=00
  Stats: 526 lines in 18 files changed: 66 ins; 397 del; 63 mod
  Patch: https://git.openjdk.org/babylon/pull/857.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/857/head:pull/857

PR: https://git.openjdk.org/babylon/pull/857