message: mavsdk_server: remove warning
  Presumably we don't need it anymore, and MSVC doesn't understand it.
diff: @@ -14,9 +14,6 @@ add_executable(unit_tests_mavsdk_server
  set_target_properties(unit_tests_mavsdk_server PROPERTIES COMPILE_FLAGS ${warnings})
  -# We don't return Handle's in the mocks for now, so we need to disable the warning.
  -set_target_properties(unit_tests_mavsdk_server PROPERTIES COMPILE_FLAGS -Wno-return-type)
  -
  target_include_directories(unit_tests_mavsdk_server
  PRIVATE
  ${CMAKE_CURRENT_SOURCE_DIR}/../src
  