firefox_decrypt: remove all-packages.nix override of by-name definition (#499971)

pkgs/by-name/fi/firefox_decrypt/package.nix

@@ -1,7 +1,7 @@
 {
   lib,
   fetchFromGitHub,
-  nss,
+  nss_latest,
   nixosTests,
   nix-update-script,
   stdenv,
@@ -30,16 +30,16 @@ python3Packages.buildPythonApplication (finalAttrs: {
     "--prefix"
     (if stdenv.hostPlatform.isDarwin then "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH")
     ":"
-    (lib.makeLibraryPath [ nss ])
+    (lib.makeLibraryPath [ nss_latest ])
   ];
 
   checkPhase = ''
     runHook preCheck
 
     patchShebangs tests
-    (cd tests && ${
-      if stdenv.hostPlatform.isDarwin then "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH"
-    }=${lib.makeLibraryPath [ nss ]} ./run_all)
+    (cd tests && ${if stdenv.hostPlatform.isDarwin then "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH"}=${
+      lib.makeLibraryPath [ nss_latest ]
+    } ./run_all)
 
     runHook postCheck
   '';

pkgs/top-level/all-packages.nix

@@ -6320,8 +6320,6 @@ with pkgs;
     fmt_12
     ;
 
-  firefox_decrypt = callPackage ../by-name/fi/firefox_decrypt/package.nix { nss = nss_latest; };
-
   fmt = fmt_12;
 
   fontconfig = callPackage ../development/libraries/fontconfig { };