emulators/yuzu: revert LICENSE change

Yuzu upstream was taken down as part of the settlement between
Nintendo and Tropic Haze LLC. Other parties are mostly unaffected.

For example, DMCA §1201(a)(2)(a) doesn't seem to apply here as Yuzu

• can be used to develop and run homebrew games
• is primarily designed for emulation
• can play already decrypted games
• doesn't ship/generate decryption keys (unlike libdvdcss)

This reverts commit df375e19a718db960b90b7e39d58dba02c775b13.

See also: https://www.eff.org/press/releases/licensing-scheme-fair-uses-and-other-speech-violates-first-amendment-eff-argues