nixos/crashdump: remove redundant kernel patch

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

nixos/modules/misc/crashdump.nix

@@ -60,17 +60,6 @@ in
        "nmi_watchdog=panic"
        "softlockup_panic=1"
       ];
-      kernelPatches = [ {
-        name = "crashdump-config";
-        patch = null;
-        extraConfig = ''
-                CRASH_DUMP y
-                DEBUG_INFO y
-                PROC_VMCORE y
-                LOCKUP_DETECTOR y
-                HARDLOCKUP_DETECTOR y
-              '';
-        } ];
     };
   };
 }