Delete empty inline destructors.

These destructor definitions don't add any value over just depending on
the implicitly-defined destructors.

R=rouslan@chromium.org
BUG=

Review URL: https://codereview.appspot.com/123350044
13 files changed
tree: 4dd82fb766aff65c85cea00e19636cfefaa28ca8
  1. cpp/
  2. externals/
  3. java/
  4. testdata/
  5. .gitmodules
  6. codereview.settings