Revert "svkbd: init at 0.2.2"

This reverts commit 5e2d683c18.

Reason for revert: svkbd is already defined in
top-level/all-packages.nix, thus this commit is causing a syntax error.

pkgs/tools/X11/svkbd/default.nix

@@ -1,39 +0,0 @@
-{ stdenv
-, lib
-, fetchurl
-, pkg-config
-, libX11
-, libXft
-, libXtst
-, libXi
-, libXinerama
-, layout ? "mobile-intl"
-}:
-
-assert lib.assertOneOf "layout" layout [ "mobile-intl" "mobile-plain" "de" "en" "ru" "sh" "arrows" ];
-
-stdenv.mkDerivation rec {
-  pname = "svkbd";
-  version = "0.3";
-
-  src = fetchurl {
-    url = "https://dl.suckless.org/tools/svkbd-${version}.tar.gz";
-    sha256 = "108khx665d7dlzs04iy4g1nw3fyqpy6kd0afrwiapaibgv4xhfsk";
-  };
-
-  nativeBuildInputs = [ pkg-config ];
-
-  buildInputs = [ libX11 libXft libXtst libXi libXinerama ];
-
-  makeFlags = [ "LAYOUT=${layout}" ];
-
-  installFlags = [ "PREFIX=$(out)" ];
-
-  meta = with lib; {
-    description = "Simple Virtual Keyboard";
-    homepage = "https://tools.suckless.org/x/svkbd/";
-    license = licenses.mit;
-    maintainers = with maintainers; [ sikmir ];
-    platforms = platforms.linux;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -13311,8 +13311,6 @@ in
 
   sselp = callPackage ../tools/X11/sselp{ };
 
-  svkbd = callPackage ../tools/X11/svkbd { };
-
   stm32cubemx = callPackage ../development/tools/misc/stm32cubemx { };
 
   stm32flash = callPackage ../development/tools/misc/stm32flash { };