[jdk11u-dev] RFR: 8207011: Remove uses of the register storage class specifier

[Paul Hohensee]

Clean backport.

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

Commit messages:
- Backport 6ffd168ad145af0b6fdd72f3130e79b6a1bb9ad0

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/703/files
Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=703&range=00
Issue: https://bugs.openjdk.java.net/browse/JDK-8207011
Stats: 58 lines in 15 files changed: 0 ins; 0 del; 58 mod
Patch: https://git.openjdk.java.net/jdk11u-dev/pull/703.diff
Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/703/head:pull/703

PR: https://git.openjdk.java.net/jdk11u-dev/pull/703