kde-frameworks: remove outdated patch

Signed-off-by: Yaroslav Bolyukin <iam@lach.pw>

pkgs/development/libraries/kde-frameworks/kimageformats.nix

@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib, fetchpatch,
+  mkDerivation, lib,
   extra-cmake-modules,
   ilmbase, karchive, openexr, libavif, qtbase
 }:
@@ -9,19 +9,6 @@ let inherit (lib) getDev; in
 mkDerivation {
   name = "kimageformats";
 
-  patches = [
-    (fetchpatch { # included in kimageformats >= 5.83
-      name = "avif-0.9.2.diff";
-      url = "https://invent.kde.org/frameworks/kimageformats/-/commit/bf3f94da766d66a0470ab744dbe1ced4697b572d.diff";
-      sha256 = "18d67l5kj9sv88jdpi061k9rl3adzkx9l51ng7saylrkfddwc3ig";
-    })
-    (fetchpatch { # included in kimageformats >= 5.82
-      name = "CVE-2021-36083.patch";
-      url = "https://invent.kde.org/frameworks/kimageformats/-/commit/297ed9a2fe339bfe36916b9fce628c3242e5be0f.diff";
-      sha256 = "16axaljgaar0j5796x1mjps93y92393x8zywh3nzw7rm9w2qxzml";
-    })
-  ];
-
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [ karchive openexr libavif qtbase ];
   outputs = [ "out" ]; # plugins only