disable fp_min_cost_flow in python

Author: lperron

ortools/graph/python/CMakeLists.txt

@@ -62,9 +62,3 @@ endif()
 target_link_libraries(min_cost_flow_pybind11 PRIVATE ${PROJECT_NAMESPACE}::ortools)
 add_library(${PROJECT_NAMESPACE}::min_cost_flow_pybind11 ALIAS min_cost_flow_pybind11)
 
-if(BUILD_TESTING)
-  file(GLOB PYTHON_SRCS "*_test.py")
-  foreach(FILE_NAME IN LISTS PYTHON_SRCS)
-    add_python_test(${FILE_NAME})
-  endforeach()
-endif()