Remove Caffe2/onnx (pytorch#127991)

Remove Caffe2/onnx since it is not used. Other tiny fixes are also applied.
Pull Request resolved: pytorch#127991
Approved by: https://github.com/ezyang

Author: cyyever

caffe2/BUILD_MODE.bzl

@@ -1930,7 +1930,6 @@ if(BUILD_PYTHON)
   if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     # Workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80947 in EmbeddingBag.cpp
     set_source_files_properties(../aten/src/ATen/native/EmbeddingBag.cpp PROPERTIES COMPILE_FLAGS -Wno-attributes)
-    set_source_files_properties(${TORCH_SRC_DIR}/../caffe2/operators/box_with_nms_limit_op.cc PROPERTIES COMPILE_FLAGS -Wno-attributes)
   endif()
 
   set(build_files)
@@ -1950,10 +1949,4 @@ if(BUILD_PYTHON)
   # Pick up static python files
   install(DIRECTORY ${CMAKE_BINARY_DIR}/caffe2 DESTINATION ${PYTHON_LIB_REL_PATH}
           FILES_MATCHING PATTERN "*.py")
-  # Caffe proto files
-  install(DIRECTORY ${CMAKE_BINARY_DIR}/caffe DESTINATION ${PYTHON_LIB_REL_PATH}
-          FILES_MATCHING PATTERN "*.py")
-  # Caffe2 proto files
-  install(DIRECTORY ${CMAKE_BINARY_DIR}/caffe2 DESTINATION ${PYTHON_LIB_REL_PATH}
-          FILES_MATCHING PATTERN "*.py")
 endif()

caffe2/CMakeLists.txt

@@ -1282,8 +1282,6 @@ if(CAFFE2_CMAKE_BUILDING_WITH_MAIN_REPO AND NOT INTERN_DISABLE_ONNX)
     add_definitions(-DONNX_ML=1)
   endif()
   add_definitions(-DONNXIFI_ENABLE_EXT=1)
-  # Add op schemas in "ai.onnx.pytorch" domain
-  add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/../caffe2/onnx/torch_ops")
   if(NOT USE_SYSTEM_ONNX)
     add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/../third_party/onnx EXCLUDE_FROM_ALL)
     if(NOT MSVC)