clang-format: [Java] Remove unnecessary line break after complex annotations

Before:
  @Annotation("Some"
      + " text")
  List<Integer>
      list;

After:
  @Annotation("Some"
      + " text")
  List<Integer> list;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@258981 91177308-0d34-0410-b5e6-96231b3b80d8