SSL: removed use of the SSL_OP_MSIE_SSLV2_RSA_PADDING option.

It has no effect since OpenSSL 0.9.7h and 0.9.8a.

src/event/ngx_event_openssl.c

diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 3705f5e..c087884 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -299,11 +299,6 @@
     SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
 #endif
 
-#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
-    /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
-    SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
-#endif
-
 #ifdef SSL_OP_SSLEAY_080_CLIENT_DH_BUG
     SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
 #endif