Revert "clang-format: [Java] Allow trailing semicolons after enums."

This reverts commit b5bdb2ef59ab922bcb4d6e843fffaee1f7f68a8c.

This doesn't really seem necessary on second though and causes problems
with C++ enum formatting.
Temporary disable formatting error

This should silence the buildbots until we understand if the clang-format
changes in r221125 have been intentional. See reply on cfe-commits for details.