tracker: Unconditionally add checkInputs to nativeBuildInputs

`gi` is required by the main `meson.build` and checked at the start
of the build process, regardless of whether tests are enabled or not.
As a result, builds are broken when `doCheck = false`.

Also removing tappy which is no longer needed: https://gitlab.gnome.org/GNOME/tracker/-/merge_requests/385

pkgs/development/libraries/tracker/default.nix

@@ -61,7 +61,8 @@ stdenv.mkDerivation rec {
     python3 # for data-generators
     systemd # used for checks to install systemd user service
     dbus # used for checks and pkg-config to install dbus service/s
-  ];
+  ] ++ checkInputs; # gi is in the main meson.build and checked regardless of
+                    # whether tests are enabled
 
   buildInputs = [
     glib
@@ -77,7 +78,6 @@ stdenv.mkDerivation rec {
 
   checkInputs = with python3.pkgs; [
     pygobject3
-    tappy
   ];
 
   mesonFlags = [