RFR: 8294526: sun/security/provider/SubjectCodeSource.java no longer referenced [v3]

[Ryan Wallace]

> SubjectCodeSource is no longer used, Class should be deleted and all references updated

Ryan Wallace has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 14 additional commits since the last revision:

 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - 8294526: SubjectCodeSource is no longer referenced
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - Merge branch 'master' into 8294526
 - ... and 4 more: https://git.openjdk.org/jdk/compare/f6c2b33a...64972419

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10550/files
  - new: https://git.openjdk.org/jdk/pull/10550/files/feb38b83..64972419

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10550&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10550&range=01-02

  Stats: 61260 lines in 1147 files changed: 24158 ins; 22989 del; 14113 mod
  Patch: https://git.openjdk.org/jdk/pull/10550.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10550/head:pull/10550

PR: https://git.openjdk.org/jdk/pull/10550