[jdk8u-dev] RFR: 8292762: Remove .jcheck directories from jdk8u subcomponents

[George Adams]

After the consolidation of jdk8u into a single mono-style repo there is no longer a need to have the .jcheck directories in each of the subcomponent directories. These can now be removed.

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Commit messages:
 - 8292762 Remove .jcheck directories from jdk8u subcomponents

Changes: https://git.openjdk.org/jdk8u-dev/pull/110/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=110&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292762
  Stats: 14 lines in 7 files changed: 0 ins; 14 del; 0 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/110.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/110/head:pull/110

PR: https://git.openjdk.org/jdk8u-dev/pull/110