message: [Docs] Remove stale documentation
  This removes a stale piece of documentation about building LLDB with the
  Xcode project.
diff: @@ -10,27 +10,8 @@ repository also contains LLDB.
  Git browser: https://github.com/llvm/llvm-project/tree/master/lldb
  -For macOS building from Xcode, simply checkout LLDB and then build
  -from Xcode. The Xcode project will automatically detect that it is a
  -fresh checkout, and checkout LLVM and Clang automatically. Unlike
  -other platforms / build systems, it will use the following directory
  -structure.
  -
  - ::
  -
  - lldb
  - |
  - `-- llvm
  - |
  - +-- tools
  - |
  - `-- clang
  -
  -
  -So updating your checkout will consist of updating LLDB, LLV<, and
  -Clang in these locations. Refer to the `Build Instructions
  -<build.html>`_ for more detailed instructions on how to build for a
  -particular platform / build system combination.
  +Refer to the `Build Instructions <build.html>`_ for more detailed instructions
  +on how to build for a particular platform / build system combination.
  Contributing to LLDB
  --------------------
  