fix: remove fermyon copyright (bytecodealliance#193)

* fix: remove fermyon copyright

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

* Update LICENSE

Co-authored-by: Joel Dice <joel.dice@akamai.com>

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Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>
Co-authored-by: Joel Dice <joel.dice@akamai.com>