thelounge: clean up all napi temporary files

pkgs/by-name/th/thelounge/package.nix

@@ -78,9 +78,10 @@ stdenv.mkDerivation (finalAttrs: {
 
     # Build the sqlite3 package.
     npm_config_nodedir="${srcOnly nodejs}" npm_config_node_gyp="${buildPackages.nodejs}/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" npm rebuild --verbose --sqlite=${sqlite.dev}
+  '';
 
-    # These files seemingly aren't needed, and also might not exist when the Darwin sandbox is disabled?
-    rm -rf node_modules/sqlite3/build-tmp-napi-v6/{Release/obj.target,node_sqlite3.target.mk}
+  postInstall = ''
+    rm -r $out/lib/node_modules/thelounge/node_modules/sqlite3/build/
   '';
 
   dontNpmPrune = true;