maintainers/teams: remove primeos from the llvm team

This is actually long overdue... :o I only maintained LLVM for a while
because it became necessary to add new versions more quickly for
updating Chromium. LLVM was pretty unmaintained at that time and I'm
super glad that it's in very good hands now (thanks y'all!) :)

maintainers/team-list.nix

@@ -524,7 +524,6 @@ with lib.maintainers; {
       dtzWill
       ericson2314
       lovek323
-      primeos
       qyliss
       raitobezarius
       rrbutani