15 RFR (S) 8249205: Remove unnecessary trademark symbols

[Iris Clark]

Hi, Mark.

> RFE: https://bugs.openjdk.java.net/browse/JDK-8249205
> Webrev: https://cr.openjdk.java.net/~mr/rev/8249205/

I looked at all the changes and they look fine.

Thanks,
Iris