review: remove unused imports

[David Hill]

Kevin,

Two JBS, same issue.

https://bugs.openjdk.java.net/browse/JDK-8167520
https://bugs.openjdk.java.net/browse/JDK-8167522

one line diffs in the description
Both of these cause compile/runtime issues with a modular build, and are currently unused anyway.

-- 
David Hill<David.Hill at Oracle.com>
Java Embedded Development

"A man's feet should be planted in his country, but his eyes should survey the world."
-- George Santayana (1863 - 1952)