With #10970 only existing *.c files will be added to SRC when using the SUBMODULES mechanism, so SUBMODULES_NOFORCE (used to filter out non existing source files) is now redundant so remove the usage.
With #10970 only existing *.c files will be added to SRC when using the SUBMODULES mechanism, so SUBMODULES_NOFORCE (used to filter out non existing source files) is now redundant so remove the usage.