RFR: JDK-8294901: remove pre-VS2017 checks in Windows related coding

Fri Oct 7 07:37:21 UTC 2022

After "8293162: Drop support for VS2017" limited current support to VS2019 and VS2022 it is most likely safe to remove various checks/workarounds related to older VS compilers like VS2015 or VS2013.

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Commit messages:
 - JDK-8294901

Changes: https://git.openjdk.org/jdk/pull/10600/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10600&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294901
  Stats: 38 lines in 4 files changed: 0 ins; 37 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10600.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10600/head:pull/10600

PR: https://git.openjdk.org/jdk/pull/10600