[CP-SAT] simplify python proto generation workflow

ortools/python/BUILD.bazel

@@ -23,9 +23,7 @@ py_binary(
         "//ortools/graph/python:linear_sum_assignment.so",
         "//ortools/graph/python:max_flow.so",
         "//ortools/graph/python:min_cost_flow.so",
-        "//ortools/sat/python:cp_model_builder_pybind.so",
         "//ortools/sat/python:cp_model_helper.so",
-        "//ortools/sat/python:sat_parameters_builder_pybind.so",
     ],
     tags = ["manual"],
     deps = [

ortools/python/setup.py.in

@@ -126,8 +126,6 @@ setup(
         '@PYTHON_PROJECT@.sat.colab':['*.pyi', 'py.typed'],
         '@PYTHON_PROJECT@.sat.python':[
             '$<TARGET_FILE_NAME:cp_model_helper_pybind11>',
-            '$<TARGET_FILE_NAME:cp_model_builder_pybind>',
-            '$<TARGET_FILE_NAME:sat_parameters_builder_pybind>',
             '*.pyi',
             'py.typed'
         ],