[refactor] move _compat23.rb left-overs to native

lib/jopenssl/load.rb

@@ -69,5 +69,3 @@ def self.secure_compare(a, b)
     OpenSSL.fixed_length_secure_compare(hashed_a, hashed_b) && a == b
   end
 end
-
-load 'jopenssl/_compat23.rb'

src/main/java/org/jruby/ext/openssl/PKeyDH.java

@@ -381,6 +381,16 @@ public IRubyObject q(final ThreadContext context) {
         return context.nil;
     }
 
+    @JRubyMethod
+    public IRubyObject set_pqg(final ThreadContext context, IRubyObject p, IRubyObject q, IRubyObject g) {
+        set_p(p);
+        if (!q.isNil()) {
+            OpenSSL.warn(context, "JRuby-OpenSSL does not support setting q param on " + inspect());
+        }
+        set_g(g);
+        return this;
+    }
+
     // don't need synchronized as value is volatile
     @JRubyMethod(name = "pub_key")
     public IRubyObject pub_key() {
@@ -421,6 +431,13 @@ public synchronized IRubyObject set_priv_key(IRubyObject arg) {
         return arg;
     }
 
+    @JRubyMethod
+    public IRubyObject set_key(final ThreadContext context, IRubyObject pub_key, IRubyObject priv_key) {
+        set_pub_key(pub_key);
+        set_priv_key(priv_key);
+        return this;
+    }
+
     private IRubyObject newBN(BigInteger value) {
         if (value == null) return getRuntime().getNil();
         return BN.newBN(getRuntime(), value);