emv: deprecate phases

pkgs/tools/misc/emv/default.nix

···
     sha256 = "7e0e12afa45ef5ed8025e5f2c6deea0ff5f512644a721f7b1b95b63406a8f7ce";
   };
 
-  phases = [ "installPhase" ];
+  dontUnpack = true;
 
   installPhase = ''
     mkdir -pv $out/bin