Revert "[MLIR][Python] add Python wheel build demo/test" (#160481)

Reverts #160388 because it broke
[mlir-nvidia](https://lab.llvm.org/buildbot/#/builders/138) builder.

Author: makslevental

mlir/examples/standalone/CMakeLists.txt

@@ -63,12 +63,8 @@ if(MLIR_ENABLE_BINDINGS_PYTHON)
   include(MLIRDetectPythonEnv)
   mlir_configure_python_dev_packages()
   # Note: for EXTERNAL_PROJECT_BUILD this must be set from the command line.
-  if(NOT MLIR_PYTHON_PACKAGE_PREFIX)
-    set(MLIR_PYTHON_PACKAGE_PREFIX "mlir_standalone" CACHE STRING "" FORCE)
-  endif()
-  if(NOT MLIR_BINDINGS_PYTHON_INSTALL_PREFIX)
-    set(MLIR_BINDINGS_PYTHON_INSTALL_PREFIX "python_packages/standalone/${MLIR_PYTHON_PACKAGE_PREFIX}" CACHE STRING "" FORCE)
-  endif()
+  set(MLIR_PYTHON_PACKAGE_PREFIX "mlir_standalone" CACHE STRING "" FORCE)
+  set(MLIR_BINDINGS_PYTHON_INSTALL_PREFIX "python_packages/standalone/${MLIR_PYTHON_PACKAGE_PREFIX}" CACHE STRING "" FORCE)
   add_subdirectory(python)
 endif()
 add_subdirectory(test)

mlir/examples/standalone/pyproject.toml

@@ -1,5 +1,3 @@
-import os
-
 # Disable with sanitizers for now, this require some more setup apparently.
 for san in ["asan", "msan", "ubsan"]:
     if san in config.available_features:
@@ -9,10 +7,7 @@ config.substitutions.append(("%cmake_exe", config.host_cmake))
 config.substitutions.append(("%cmake_generator", config.host_cmake_generator))
 config.substitutions.append(("%host_cxx", config.host_cxx))
 config.substitutions.append(("%host_cc", config.host_cc))
-config.substitutions.append(("%hostc_compiler_launcher", config.host_c_compiler_launcher))
-config.substitutions.append(("%hostcxx_compiler_launcher", config.host_cxx_compiler_launcher))
 config.substitutions.append(("%enable_libcxx", config.enable_libcxx))
 config.substitutions.append(("%mlir_cmake_dir", config.mlir_cmake_dir))
-config.substitutions.append(("%mlir_obj_root", config.mlir_obj_root))
 config.substitutions.append(("%llvm_use_linker", config.llvm_use_linker))
 config.substitutions.append(("%cmake_build_type", config.cmake_build_type))

mlir/test/Examples/standalone/lit.local.cfg

@@ -15,8 +15,6 @@ config.native_target = "@LLVM_NATIVE_ARCH@"
 config.host_os = "@HOST_OS@"
 config.host_cc = "@HOST_CC@"
 config.host_cxx = "@HOST_CXX@"
-config.host_c_compiler_launcher = "@CMAKE_C_COMPILER_LAUNCHER@"
-config.host_cxx_compiler_launcher = "@CMAKE_CXX_COMPILER_LAUNCHER@"
 config.enable_libcxx = "@LLVM_ENABLE_LIBCXX@"
 config.host_cmake = "@CMAKE_COMMAND@"
 config.host_cmake_generator = "@CMAKE_GENERATOR@"