Revert "marble: fix build with gpsd 3.23.1"

The patch is already included in the current source.
It's PR #140523 adding the patch and PR #141127 updating KDE apps;
they missed each other (different target branches, different files).

This reverts commit e08f549599.

pkgs/applications/kde/marble.nix

@@ -2,7 +2,7 @@
 , extra-cmake-modules, kdoctools
 , qtscript, qtsvg, qtquickcontrols, qtwebengine
 , krunner, shared-mime-info, kparts, knewstuff
-, gpsd, perl, fetchpatch
+, gpsd, perl
 }:
 
 mkDerivation {
@@ -18,15 +18,6 @@ mkDerivation {
     qtscript qtsvg qtquickcontrols qtwebengine shared-mime-info krunner kparts
     knewstuff gpsd
   ];
-  patches = [
-    (fetchpatch {
-      # Backport fix to allow compilation with gpsd 3.23.1
-      # Remove when marble compiles without the patch.
-      # See: https://invent.kde.org/education/marble/-/merge_requests/57
-      url = "https://invent.kde.org/education/marble/-/commit/8aadc3eb8f9484a65d497d442cd8c61fe1462bef.diff";
-      sha256 = "sha256-ZkPXyunVItSRctv6SLGIonvyZwLDhCz+wfJrIXeHcDo=";
-    })
-  ];
   preConfigure = ''
     cmakeFlags+=" -DINCLUDE_INSTALL_DIR=''${!outputDev}/include"
   '';