Revert "gpgme: add pkgConfigModules metadata"

This reverts commit 0776d35227.

Reason for revert: Already implemented as part of #475048.

pkgs/by-name/gp/gpgme/package.nix

@@ -17,7 +17,6 @@
   libsForQt5,
   qt6Packages,
   python3,
-  testers,
 }:
 
 stdenv.mkDerivation rec {
@@ -96,9 +95,6 @@ stdenv.mkDerivation rec {
     python = python3.pkgs.gpgme;
     qt5 = libsForQt5.qgpgme;
     qt6 = qt6Packages.qgpgme;
-    pkg-config = testers.hasPkgConfigModules {
-      package = finalAttrs.finalPackage;
-    };
   };
 
   meta = {
@@ -117,9 +113,5 @@ stdenv.mkDerivation rec {
     ];
     platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ dotlambda ];
-    pkgConfigModules = [
-      "gpgme-glib"
-      "gpgme"
-    ];
   };
 }