CLEANUP: ssl: remove 57 occurrences of useless tests on LIBRESSL_VERSION_NUMBER

They were all check to comply with the advertised openssl version. Now
that libressl doesn't pretend to be a more recent openssl anymore, we
can simply rely on the regular openssl version tests without having to
deal with exceptions for libressl.
diff --git a/src/server.c b/src/server.c
index e77d3bc..b88ab30 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1544,7 +1544,7 @@
 		srv->ssl_ctx.verify_host = strdup(src->ssl_ctx.verify_host);
 	if (src->ssl_ctx.ciphers != NULL)
 		srv->ssl_ctx.ciphers = strdup(src->ssl_ctx.ciphers);
-#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L && !defined OPENSSL_IS_BORINGSSL && !defined LIBRESSL_VERSION_NUMBER)
+#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L && !defined OPENSSL_IS_BORINGSSL)
 	if (src->ssl_ctx.ciphersuites != NULL)
 		srv->ssl_ctx.ciphersuites = strdup(src->ssl_ctx.ciphersuites);
 #endif