Do not build mlgo-utils

ROOT removes all the test folders in LLVM to reduce size, removing
the test folder in mlgo-utils makes it fail to compile, temporarily
disable it for now.

Author: devajithvs

llvm/CMakeLists.txt

@@ -1197,7 +1197,7 @@ if( LLVM_INCLUDE_UTILS )
   add_subdirectory(utils/UnicodeData)
   add_subdirectory(utils/yaml-bench)
   add_subdirectory(utils/split-file)
-  add_subdirectory(utils/mlgo-utils)
+  # add_subdirectory(utils/mlgo-utils)
   if( LLVM_INCLUDE_TESTS )
     add_subdirectory(${LLVM_THIRD_PARTY_DIR}/unittest ${CMAKE_CURRENT_BINARY_DIR}/third-party/unittest)
   endif()