RFR: JDK-8299395: Remove metaprogramming/removeCV.hpp [v3]

[Justin King]

> Code cleanup of pre-C++11 <type_traits> implementations.

Justin King has updated the pull request incrementally with three additional commits since the last revision:

 - Switch to using from typedef
   
   Signed-off-by: Justin King <jcking at google.com>
 - Use std::remove_cv_t
   
   Signed-off-by: Justin King <jcking at google.com>
 - Use std::remove_cv_t
   
   Signed-off-by: Justin King <jcking at google.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/11799/files
  - new: https://git.openjdk.org/jdk/pull/11799/files/55ac3324..9d7336f1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11799&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11799&range=01-02

  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/11799.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11799/head:pull/11799

PR: https://git.openjdk.org/jdk/pull/11799