Revert "Drop systemd-oomd-defaults on 38 kde/desktop images (#2133829)"

This reverts commit 52709bc82f.
I'm hoping the oomd problems have been resolved upstream now -
see https://bugzilla.redhat.com/show_bug.cgi?id=2133829 - so I
hope we won't need this any more. Let's see how it goes.

desktop-38.ks

@@ -1,26 +0,0 @@
-bootloader --location=mbr
-network --bootproto=dhcp
-url --mirrorlist=https://mirrors.fedoraproject.org/mirrorlist?repo=fedora-$releasever&arch=$basearch
-repo --name=updates --mirrorlist=https://mirrors.fedoraproject.org/mirrorlist?repo=updates-released-f$releasever&arch=$basearch
-lang en_US.UTF-8
-keyboard us
-timezone --utc America/New_York
-clearpart --all
-autopart
-rootpw --plaintext weakpassword
-user --name=test --password=weakpassword --plaintext --groups wheel
-firstboot --enable
-poweroff
-
-%packages
-@^workstation-product-environment
--selinux-policy-minimum
-# to workaround https://bugzilla.redhat.com/show_bug.cgi?id=2133829
-# drop when that bug is resolved
--systemd-oomd-defaults
-%end
-
-%post
-authselect enable-feature with-fingerprint
-touch $INSTALL_ROOT/home/home_preserved
-%end

kde-38.ks

@@ -25,11 +25,8 @@ poweroff
 @networkmanager-submodules
 fedora-release-kde
 falkon
+
 imsettings-qt
 -initial-setup
 -initial-setup-gui
-
-# to workaround https://bugzilla.redhat.com/show_bug.cgi?id=2133829
-# drop when that bug is resolved
--systemd-oomd-defaults
 %end