Don't remove c_rehash that wasn't created by make; this script
is created by configure.
This fix brought to you by the letter "f" and
Reviewed-by: Emilia Kasper <emilia@openssl.org>
Some Makefiles had actions for "dclean" that really belonged
to the "clean" target. This is wrong because clean ends up,
well, not really cleaning everything.
Reviewed-by: Richard Levitte <levitte@openssl.org>