package/libopenssl: remove deprecated options

Fixes configure warning:
***** Deprecated options: no-crypto-mdebug-backtrace, no-ssl2

no-ssl2 option was re-added in 2016:
https://github.com/openssl/openssl/commit/e80381e1a3309f5d4a783bcaa508a90187a48882
"We warn that it's deprecated, and ignore it otherwise."
Quoting https://www.openssl.org/docs/man3.0/man3/SSLv23_method.html
"Support for SSLv2 [... was] removed in OpenSSL 1.1.0."
Therefore we do not need any legacy handling for
BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL2.

no-crypto-mdebug-backtrace was removed in OpenSSL 3.0:
https://github.com/openssl/openssl/blob/master/NEWS.md?plain=1#L161

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libopenssl/Config.in

@@ -97,10 +97,6 @@ config BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL
 	bool "enable SSL"
 	default y
 
-config BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL2
-	bool "enable SSL2"
-	default y
-
 config BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL3
 	bool "enable SSL3"
 	default y

package/libopenssl/libopenssl.mk

@@ -97,12 +97,11 @@ define LIBOPENSSL_CONFIGURE_CMDS
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_WHIRLPOOL),,no-whirlpool) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_BLOWFISH),,no-bf) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL),,no-ssl) \
-			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL2),,no-ssl2) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_SSL3),,no-ssl3) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_WEAK_SSL),,no-weak-ssl-ciphers) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_PSK),,no-psk) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_CAST),,no-cast) \
-			$(if $(BR2_PACKAGE_LIBOPENSSL_UNSECURE),,no-unit-test no-crypto-mdebug-backtrace no-crypto-mdebug no-autoerrinit) \
+			$(if $(BR2_PACKAGE_LIBOPENSSL_UNSECURE),,no-unit-test no-crypto-mdebug no-autoerrinit) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_DYNAMIC_ENGINE),,no-dynamic-engine ) \
 			$(if $(BR2_PACKAGE_LIBOPENSSL_ENABLE_COMP),,no-comp) \
 			$(if $(BR2_STATIC_LIBS),zlib,zlib-dynamic) \