chore: use upstream rust-jemalloc-sys-unprefixed after flake.lock update

nix/packages/default.nix

@@ -1,7 +1,6 @@
 {
   imports = [
     ./continuwuity
-    ./jemalloc.nix
     ./rocksdb
     ./rust.nix
     ./uwulib

nix/packages/jemalloc.nix

@@ -1,26 +0,0 @@
-{
-  perSystem =
-    {
-      pkgs,
-      ...
-    }:
-    {
-      # we disable some unused features here. The code won't compile without these
-      #
-      # > <jemalloc>: Invalid conf pair: prof_active:false
-      # > error: test failed, to rerun pass `-p conduwuit --lib`
-      # >
-      # > Caused by:
-      # >   process didn't exit successfully: `/build/source/target/release/deps/conduwuit-67fbd204f38e8c35` (signal: 11, SIGSEGV: invalid memory reference)
-      packages.rust-jemalloc-sys-unprefixed' = pkgs.rust-jemalloc-sys-unprefixed.overrideAttrs (old: {
-        configureFlags =
-          old.configureFlags
-          ++
-            # we dont need docs
-            [ "--disable-doc" ]
-          ++
-            # we dont need cxx/C++ integration
-            [ "--disable-cxx" ];
-      });
-    };
-}

nix/packages/rocksdb/default.nix

@@ -1,15 +1,12 @@
 {
   perSystem =
     {
-      self',
       pkgs,
       ...
     }:
     {
       packages = {
-        rocksdb = pkgs.callPackage ./package.nix {
-          rust-jemalloc-sys-unprefixed = self'.packages.rust-jemalloc-sys-unprefixed';
-        };
+        rocksdb = pkgs.callPackage ./package.nix { };
       };
     };
 }