e2fsprogs: disable failing tests (#65471)

Disable several tests that often fail on Hydra but not locally.

pkgs/tools/filesystems/e2fsprogs/default.nix

@@ -26,6 +26,14 @@ stdenv.mkDerivation rec {
       })
     ];
 
+  postPatch = ''
+    # Remove six failing tests
+    # https://github.com/NixOS/nixpkgs/issues/65471
+    for test in m_image_mmp m_mmp m_mmp_bad_csum m_mmp_bad_magic t_mmp_1on t_mmp_2off; do
+        rm -r "tests/$test"
+    done
+  '';
+
   configureFlags =
     if stdenv.isLinux then [
       "--enable-elf-shlibs"