RFR: remove support for LooselyConsistentValue [v2]

[Vicente Romero]

> very simple PR, removing a remaining reference to interface LooselyConsistentValue

Vicente Romero has updated the pull request incrementally with two additional commits since the last revision:

 - Merge branch 'remove.support.looselyConsistentValueType' of https://github.com/vicente-romero-oracle/valhalla into remove.support.looselyConsistentValueType
 - remove support for LooselyConsistentValue

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1856/files
  - new: https://git.openjdk.org/valhalla/pull/1856/files/16f6e954..637dfff4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1856&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1856&range=00-01

  Stats: 65 lines in 1 file changed: 0 ins; 65 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/1856.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1856/head:pull/1856

PR: https://git.openjdk.org/valhalla/pull/1856