Fix Python CMakeLists.txt

python/CMakeLists.txt

@@ -1,24 +1,9 @@
 cmake_minimum_required(VERSION 3.8)
 
-###############################################################################
-# Download pybind11
-function(rigid_ipc_download_pybind11)
-  rigid_ipc_download_project(pybind11
-    GIT_REPOSITORY https://github.com/pybind/pybind11.git
-    GIT_TAG        v2.6.2
-  )
-endfunction()
+# pybind11
+include(pybind11)
 
-if(NOT TARGET pybind11::module)
-  rigid_ipc_download_pybind11()
-  add_subdirectory(
-    ${RIGID_IPC_EXTERNAL}/pybind11
-    ${CMAKE_CURRENT_BINARY_DIR}/pybind11)
-endif()
-
-###############################################################################
 # Create Python module for Rigid IPC
-
 pybind11_add_module(rigidipc src/bindings.cpp)
 target_link_libraries(rigidipc PRIVATE ${PROJECT_NAME})
 # set_target_properties(rigidipc PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")