electron_34-bin: remove fix for read out of range on aarch64 16k pages systems

Cleanup, because electron 34.3.0 and 33.4.1 already contain the fix
upstream and have reached nixpkgs master.

https://github.com/electron/electron/releases/tag/v34.3.0
https://github.com/electron/electron/pull/45571
https://github.com/electron/electron/releases/tag/v33.4.1
https://github.com/electron/electron/pull/45602

pkgs/development/tools/electron/binary/generic.nix

@@ -128,13 +128,6 @@ let
     vulkan-loader
   ];
 
-  # Fix read out of range on aarch64 16k pages builds
-  # https://github.com/NixOS/nixpkgs/pull/365364
-  # https://github.com/NixOS/nixpkgs/pull/380991
-  # Can likely be removed when v34.2.1 (or v32.3.0?) releases:
-  # https://github.com/electron/electron/pull/45571
-  needsAarch64PageSizeFix = lib.versionAtLeast version "34" && stdenv.hostPlatform.isAarch64;
-
   linux = finalAttrs: {
     buildInputs = [
       glib
@@ -162,8 +155,7 @@ let
 
     preFixup = ''
       makeWrapper "$out/libexec/electron/electron" $out/bin/electron \
-        "''${gappsWrapperArgs[@]}" \
-        ${lib.optionalString needsAarch64PageSizeFix "--add-flags '--js-flags=--no-decommit-pooled-pages'"}
+        "''${gappsWrapperArgs[@]}"
     '';
 
     postFixup = ''