Remove unreachable check.

It is impossible to have an SSL* without a corresponding method.

Change-Id: Icaf826a06aaaa2c7caf98b1e4a950f9c1d48e6bd
Reviewed-on: https://boringssl-review.googlesource.com/12621
Reviewed-by: Adam Langley <agl@google.com>

ssl/ssl_lib.c

diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 9eb8cd2..144c4bb 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -2873,11 +2873,6 @@
 }
 
 int SSL_clear(SSL *ssl) {
-  if (ssl->method == NULL) {
-    OPENSSL_PUT_ERROR(SSL, SSL_R_NO_METHOD_SPECIFIED);
-    return 0;
-  }
-
   /* TODO(davidben): Some state on |ssl| is reset both in |SSL_new| and
    * |SSL_clear| because it is per-connection state rather than configuration
    * state. Per-connection state should be on |ssl->s3| and |ssl->d1| so it is