[ci skip] compiler: Kill last remaining tabs in CallArity

Signed-off-by: Austin Seipp <austin@well-typed.com>
[ci skip] Kill tabs in md5.h

Signed-off-by: Austin Seipp <austin@well-typed.com>
[ci skip] Kill unused count_bytes script

Signed-off-by: Austin Seipp <austin@well-typed.com>