openssl_1.0: drop obsolete ca.patch

openssl_1.0: drop obsolete ca.patch

This patch adds a second line to the -help output of the CA.pl script
(which lists almost the same command line options as the line above
it but in a slightly different order). Although it's tagged as a
Debian backport, there's no patch like it in recent Debian patch sets
for openssl 1.0.2.

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>