Objective-C. revert patch for rdar://17554063.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220812 91177308-0d34-0410-b5e6-96231b3b80d8
clang-format: Improve && detection as binary operator.

Before:
  template <class T,
            class = typename ::std::enable_if<
                ::std::is_array<T>{}&& ::std::is_array<T>{}>::type>
  void F();

After:
  template <class T,
            class = typename ::std::enable_if<
                ::std::is_array<T>{} && ::std::is_array<T>{}>::type>
  void F();

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220813 91177308-0d34-0410-b5e6-96231b3b80d8