Method `Provider.getKey` was added in [JDK-8276660](https://bugs.openjdk.java.net/browse/JDK-8276660). It was unused since introduction. Method `EngineDescription.getConstructorParameterClass()` and field `EngineDescription.constructorParameterClass` is unused since [JDK-7191662](https://bugs.openjdk.java.net/browse/JDK-7191662)
------------- Commit messages: - [PATCH] Cleanup dead code in java.security.Provider Changes: https://git.openjdk.java.net/jdk/pull/7164/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7164&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8280970 Stats: 14 lines in 1 file changed: 0 ins; 14 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7164.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7164/head:pull/7164 PR: https://git.openjdk.java.net/jdk/pull/7164
