Small optimization for NativeVelocityCipher

Instead of going through the general process function, which does extra
checks to ensure that its arguments are sane, move "closer" to the action
by stripping down to the actual implementation.

native/src/main/java/com/velocitypowered/natives/encryption/NativeVelocityCipher.java

@@ -50,14 +50,16 @@ public class NativeVelocityCipher implements VelocityCipher {
 
   @Override
   public ByteBuf process(ChannelHandlerContext ctx, ByteBuf source) throws ShortBufferException {
-    ByteBuf out = ctx.alloc().directBuffer(source.readableBytes());
-    try {
-      process(source, out);
-      return out;
-    } catch (Exception e) {
-      out.release();
-      throw e;
-    }
+    ensureNotDisposed();
+
+    int len = source.readableBytes();
+    ByteBuf out = ctx.alloc().directBuffer(len);
+
+    impl.process(this.ctx, source.memoryAddress() + source.readerIndex(), len,
+        out.memoryAddress(), encrypt);
+    source.skipBytes(len);
+    out.writerIndex(len);
+    return out;
   }
 
   @Override