remove one patch from a nixpkgs packgage

mosh.nix

{ mosh, lib}:
let
  # workaround error
  #   Bad configuration option: usekeychain
  # by letting mosh use the system ssh instead of nixpkgs ssh
  filter =
    if mosh.system == "aarch64-darwin"
    then
      (patch: !(lib.strings.hasSuffix "ssh_path.patch" (toString patch)))
    else
      (patch: patch);
in
mosh.overrideDerivation (
  oldAttrs: {
    patches = (builtins.filter filter oldAttrs.patches);
  }
)