Revert "clang-format: [js] Updates to Google's JavaScript style."

This reverts commit eefd2eaad43c5c2b17953ae7ed1e72b28e696f7b.

Apparently, this change was a bit premature.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221365 91177308-0d34-0410-b5e6-96231b3b80d8