kotatogram-desktop: unbreak on aarch64-linux

pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix

@@ -220,6 +220,6 @@ stdenv.mkDerivation rec {
     changelog = "https://github.com/kotatogram/kotatogram-desktop/releases/tag/k{version}";
     maintainers = with maintainers; [ ilya-fedin ];
     # never built on aarch64-darwin since first introduction in nixpkgs
-    broken = (stdenv.isDarwin && stdenv.isAarch64) || (stdenv.isLinux && stdenv.isAarch64);
+    broken = stdenv.isDarwin && stdenv.isAarch64;
   };
 }

pkgs/top-level/all-packages.nix

@@ -31094,10 +31094,9 @@ with pkgs;
       Carbon AudioToolbox VideoToolbox VideoDecodeAcceleration AVFoundation CoreAudio CoreVideo
       CoreMediaIO QuartzCore AppKit CoreWLAN WebKit IOKit GSS MediaPlayer IOSurface Metal MetalKit;
 
-    # C++20 is required, aarch64 has gcc 9 by default
     stdenv = if stdenv.isDarwin
       then darwin.apple_sdk_11_0.stdenv
-      else if stdenv.isAarch64 then gcc10Stdenv else stdenv;
+      else stdenv;
 
     # tdesktop has random crashes when jemalloc is built with gcc.
     # Apparently, it triggers some bug due to usage of gcc's builtin