RFR: 8282583: Update BCEL md to include the copyright notice [v2]

[Naoto Sato]

On Thu, 3 Mar 2022 22:34:43 GMT, Joe Wang <joehw at openjdk.org> wrote:

>> Update BCEL md to include the copyright notice.
>
> Joe Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove the section that's no longer in the notice file

Marked as reviewed by naoto (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/7681