RFR: 8345073: Remove SecurityManager checks from sun.awt.image classes [v2]

[Phil Race]

> Remove SecurityManager related code from sun.awt.image classes

Phil Race has updated the pull request incrementally with two additional commits since the last revision:

 - 8345073
 - 8345073

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22398/files
  - new: https://git.openjdk.org/jdk/pull/22398/files/2e56aaf0..0d37d92f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22398&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22398&range=00-01

  Stats: 7 lines in 1 file changed: 7 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22398.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22398/head:pull/22398

PR: https://git.openjdk.org/jdk/pull/22398