Revert "gnome: fix compilation with gcc 11.3.0"

This reverts commit 251ab5f3f6.

Fixed by https://github.com/NixOS/nixpkgs/pull/171819 instead.

pkgs/desktops/gnome/apps/cheese/default.nix

@@ -80,8 +80,6 @@ stdenv.mkDerivation rec {
     pipewire # PipeWire provides a gstreamer plugin for using PipeWire for video
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=overlength-strings";
-
   postPatch = ''
     chmod +x meson_post_install.py
     patchShebangs meson_post_install.py

pkgs/desktops/gnome/apps/gnome-maps/default.nix

@@ -69,8 +69,6 @@ stdenv.mkDerivation rec {
     webkitgtk
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=overlength-strings";
-
   postPatch = ''
     chmod +x meson_post_install.py # patchShebangs requires executable file
     patchShebangs meson_post_install.py

pkgs/desktops/gnome/apps/gnome-music/default.nix

@@ -76,8 +76,6 @@ python3.pkgs.buildPythonApplication rec {
     gst-plugins-ugly
   ]);
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=overlength-strings";
-
   pythonPath = with python3.pkgs; [
     pycairo
     dbus-python

pkgs/desktops/gnome/core/gnome-shell/default.nix

@@ -175,8 +175,6 @@ stdenv.mkDerivation rec {
     pythonEnv
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=overlength-strings";
-
   mesonFlags = [
     "-Dgtk_doc=true"
   ];

pkgs/desktops/gnome/core/totem/default.nix

@@ -77,8 +77,6 @@ stdenv.mkDerivation rec {
     xvfb-run
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-error=overlength-strings";
-
   mesonFlags = [
     # TODO: https://github.com/NixOS/nixpkgs/issues/36468
     "-Dc_args=-I${glib.dev}/include/gio-unix-2.0"