Commit c512d2544c68 ("gitignore: ignore scripts/ihex2fw") was unneeded.
ihex2fw was generated in firmware/ instead of scripts/ at that time
although ihex2fw.c was pushed back and forth between those directories
in the past.
check-lc_ctype was removed by commit cb43fb5775df ("docs: remove
DocBook from the building system").
Signed-off-by: Masahiro Yamada