Remove Proton-Sarek (unsupported, replaced by proton-cachyos)

[pythonlover02]

Proton-Sarek is no longer supported by me. It has been replaced by proton-cachyos as the supported Proton build shipping DXVK-Sarek.

[Vysp3r]

I will remove it tonight.
Nice to see your project being merged with it!

[Vysp3r]

Just to make sure, it's only Proton-Sarek and not DXVK-Sarek?

[pythonlover02]

Yeah, DXVK-Sarek its still being worked on