Revert "linux kernels: patch against DCCP double free (CVE-2017-6074)"

This reverts commit 1d68edbef48f30a4cefc33a85636099582411957.

pkgs/os-specific/linux/kernel/patches.nix

···
         sha256 = "0mps33r4mnwiy0bmgrzgqkrk59yya17v6kzpv9024g4xlz61rk8p";
       };
     };
-
-  DCCP_double_free_vulnerability_CVE-2017-6074 = rec
-    { name = "DCCP_double_free_vulnerability_CVE-2017-6074.patch";
-      patch = fetchpatch {
-        inherit name;
-        url = "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/?id=5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4";
-        sha256 = "10dmv3d3gj8rvj9h40js4jh8xbr5wyaqiy0kd819mya441mj8ll2";
-      };
-    };
 }

pkgs/top-level/all-packages.nix

···
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
         kernelPatches.packet_fix_race_condition_CVE_2016_8655
-        kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
     kernelPatches = with kernelPatches; [
       bridge_stp_helper
       packet_fix_race_condition_CVE_2016_8655
-      DCCP_double_free_vulnerability_CVE-2017-6074
     ];
   };
 
···
       [ bridge_stp_helper
         lguest_entry-linkage
         packet_fix_race_condition_CVE_2016_8655
-        DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
   linux_3_12 = callPackage ../os-specific/linux/kernel/linux-3.12.nix {
     kernelPatches = with kernelPatches;
       [ bridge_stp_helper
-        DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
   linux_4_1 = callPackage ../os-specific/linux/kernel/linux-4.1.nix {
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
-        kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
     kernelPatches =
       [ kernelPatches.bridge_stp_helper
         kernelPatches.cpu-cgroup-v2."4.4"
-        kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
         # !!! 4.7 patch doesn't apply, 4.9 patch not up yet, will keep checking
         # kernelPatches.cpu-cgroup-v2."4.7"
         kernelPatches.modinst_arg_list_too_long
-        kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
       ]
       ++ lib.optionals ((platform.kernelArch or null) == "mips")
       [ kernelPatches.mips_fpureg_emu
···
     kernelPatches = [
       kernelPatches.bridge_stp_helper
       kernelPatches.modinst_arg_list_too_long
-      kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
     ] ++ lib.optionals ((platform.kernelArch or null) == "mips") [
       kernelPatches.mips_fpureg_emu
       kernelPatches.mips_fpu_sigill
···
                       kernelPatches.chromiumos_mfd_fix_dependency
                       kernelPatches.chromiumos_no_link_restrictions
                       kernelPatches.genksyms_fix_segfault
-                      kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
                     ];
   };
 
···
     kernelPatches = [ kernelPatches.chromiumos_Kconfig_fix_entries_3_18
                       kernelPatches.chromiumos_no_link_restrictions
                       kernelPatches.genksyms_fix_segfault
-                      kernelPatches.DCCP_double_free_vulnerability_CVE-2017-6074
                     ];
   };