Further tidy up cipher logic.

With SSL2 gone, there's no need for this split between the abstract
cipher framework and ciphers. Put the cipher suite table in ssl_cipher.c
and move other SSL_CIPHER logic there. With that gone, prune the
cipher-related hooks in SSL_PROTOCOL_METHOD.

BUG=468889

Change-Id: I48579de8bc4c0ea52781ba1b7b57bc5b4919d21c
Reviewed-on: https://boringssl-review.googlesource.com/4961
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/ssl/d1_meth.c b/ssl/d1_meth.c
index eb30b0e..d90f75b 100644
--- a/ssl/d1_meth.c
+++ b/ssl/d1_meth.c
@@ -71,8 +71,7 @@
     dtls1_dispatch_alert,
     ssl3_ctrl,
     ssl3_ctx_ctrl,
-    ssl3_num_ciphers,
-    dtls1_get_cipher,
+    dtls1_supports_cipher,
     DTLS1_HM_HEADER_LENGTH,
     dtls1_set_handshake_header,
     dtls1_handshake_write,