RFR: 8333364: Minor cleanup could be done in com.sun.crypto.provider [v2]

[Mark Powers]

> https://bugs.openjdk.org/browse/JDK-8333364

Mark Powers has updated the pull request incrementally with one additional commit since the last revision:

  comments from Valerie

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19535/files
  - new: https://git.openjdk.org/jdk/pull/19535/files/3472c998..a8b7e2bd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19535&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19535&range=00-01

  Stats: 29 lines in 8 files changed: 5 ins; 5 del; 19 mod
  Patch: https://git.openjdk.org/jdk/pull/19535.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19535/head:pull/19535

PR: https://git.openjdk.org/jdk/pull/19535