pympress: remove workaround for pygobject < 3.51

This reverts 355ea90cdb.
As of 8d6735db2b,
we now have a new enough version of pygobject3 that we can drop this
workaround.

pkgs/by-name/py/pympress/issue-330-gprops-iter-actually-iterable.patch

@@ -1,11 +0,0 @@
---- i/pympress/builder.py
-+++ w/pympress/builder.py
-@@ -76,7 +76,7 @@ class Builder(Gtk.Builder):
-         Args:
-             a_widget (:class:`~GObject.Object`): an object built by the builder, usually a widget
-         """
--        for str_prop in (prop.name for prop in a_widget.props if prop.value_type == GObject.TYPE_STRING):
-+        for str_prop in (prop.name for prop in list(a_widget.props) if prop.value_type == GObject.TYPE_STRING):
-             try:
-                 str_val = getattr(a_widget.props, str_prop)
-                 if str_val:

pkgs/by-name/py/pympress/package.nix

@@ -30,13 +30,6 @@ python3Packages.buildPythonApplication (finalAttrs: {
     babel
   ];
 
-  patches = [
-    # Workaround for a bug on Python >= 3.13+ and pygobject < 3.51.
-    # This can go away once nixpkgs is using pygobject >= 3.51.
-    # See <https://github.com/Cimbali/pympress/issues/330> for details.
-    ./issue-330-gprops-iter-actually-iterable.patch
-  ];
-
   dependencies =
     with python3Packages;
     [