Don't use ciphersuites for inflating the ClientHello in clienthellotest

clienthellotest tries to fill out the size of the ClientHello by adding
extra ciphersuites in order to test the padding extension. This is
unreliable because they are very dependent on configuration options. If we
add too much data the test will fail! We were already also adding some dummy
ALPN protocols to pad out the size, and it turns out that this is sufficient
just in itself, so drop the extra ciphersuites.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4331)