flameshot: fix under KDE wayland

This is required since KWin relies on absolute paths in `Exec=` to find a process'
corresponding desktop file and check if it's allowed to take screenshot.

pkgs/tools/misc/flameshot/default.nix

@@ -21,7 +21,9 @@ mkDerivation rec {
   };
 
   patches = [
-    # Support for USE_LAUNCHER_ABSOLUTE_PATH.
+    # Use absolute install path for `Exec=` in the desktop file.
+    # This is required since KWin relies on absolute paths in `Exec=` to find a process'
+    # corresponding desktop file and check if it's allowed to take screenshot.
     # Should be removed when the next release comes out.
     (fetchpatch {
       url = "https://github.com/flameshot-org/flameshot/commit/1031980ed1e62d24d7f719998b7951d48801e3fa.patch";
@@ -44,9 +46,6 @@ mkDerivation rec {
   nativeBuildInputs = [ cmake qttools qtsvg ];
   buildInputs = [ qtbase ];
 
-  # Use relative path for the .desktop file.
-  cmakeFlags = [ "-DUSE_LAUNCHER_ABSOLUTE_PATH=OFF" ];
-
   meta = with lib; {
     description = "Powerful yet simple to use screenshot software";
     homepage = "https://github.com/flameshot-org/flameshot";