Delete out-of-tree build support of llvm-mctoll.

[bharadwajy]

Removed unmaintained out-of-tree build support of the tool from CMakeLists.txt.

tools/llvm-mctoll/CMakeLists.txt

-# Check if llvm-mctoll is built as a standalone project.
-if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
-  project(BinaryRaiser)
-  cmake_minimum_required(VERSION 3.4.3)
-
-  set(LLVM_MCTOLL_BUILT_STANDALONE TRUE)
-
-  find_program(LLVM_CONFIG_PATH "llvm-config" DOC "Path to llvm-config binary")
-  if(NOT LLVM_CONFIG_PATH)
-    message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH")
-  endif()
-
-  execute_process(COMMAND "${LLVM_CONFIG_PATH}"
-                  "--assertion-mode"
-                  "--obj-root"
-                  "--bindir"
-                  "--src-root"
-                  "--cmakedir"
-                  "--cxxflags"
-                  RESULT_VARIABLE HAD_ERROR
-                  OUTPUT_VARIABLE LLVM_CONFIG_OUTPUT
-                  OUTPUT_STRIP_TRAILING_WHITESPACE)
-  if(HAD_ERROR)
-    message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
-  endif()
-
-  string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" LLVM_CONFIG_OUTPUT "${LLVM_CONFIG_OUTPUT}")
-
-  list(GET LLVM_CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
-  list(GET LLVM_CONFIG_OUTPUT 1 OBJ_ROOT)
-  list(GET LLVM_CONFIG_OUTPUT 2 TOOLS_BINARY_DIR)
-  list(GET LLVM_CONFIG_OUTPUT 3 MAIN_SRC_DIR)
-  list(GET LLVM_CONFIG_OUTPUT 4 LLVM_CMAKE_PATH)
-  list(GET LLVM_CONFIG_OUTPUT 5 LLVM_CXX_FLAGS)
-
-  if(NOT MSVC_IDE)
-    set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
-      CACHE BOOL "Enable assertions")
-    # Assertions should follow llvm-config's.
-    mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
-  endif()
-
-  set(LLVM_OBJ_ROOT ${OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
-  set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LLVM_CXX_FLAGS}")
-  set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
-  set(LLVM_EXTERNAL_LIT ${LLVM_TOOLS_BINARY_DIR}/llvm-lit CACHE PATH "Path to llvm-lit")
-
-  file(TO_CMAKE_PATH ${LLVM_OBJ_ROOT} LLVM_BINARY_DIR)
-
-  if(NOT EXISTS "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
-    message(FATAL_ERROR "LLVMConfig.cmake not found")
-  endif()
-  include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
-  list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
-
-  # They are used as destination of target generators.
-  set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
-
-  option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
-
-  include (AddLLVM)
-  include_directories(${LLVM_INCLUDE_DIRS})
-
-  include(CheckLibraryExists)
-  check_library_exists(xar xar_open "" HAVE_LIBXAR)
-  if(HAVE_LIBXAR)
-    set(XAR_LIB xar)
-  endif()
-
-endif()
-
 set(LLVM_MCTOLL_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 set(LLVM_MCTOLL_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})