QUIC: removed level field from ngx_quic_compat_record_t.

It was made unused in d15f8f2 after introducing reusable crypto contexts.

Author: pluknet

src/event/quic/ngx_event_quic_openssl_compat.c

@@ -35,8 +35,6 @@ typedef struct {
     ngx_str_t                     payload;
     uint64_t                      number;
     ngx_quic_compat_keys_t       *keys;
-
-    enum ssl_encryption_level_t   level;
 } ngx_quic_compat_record_t;
 
 
@@ -501,7 +499,6 @@ SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level,
         rec.log = c->log;
         rec.number = com->read_record++;
         rec.keys = &com->keys;
-        rec.level = level;
 
         if (level == ssl_encryption_initial) {
             n = ngx_min(len, 65535);