Revert "Login and UKI updates (#1860)"

This reverts commit f2021a95a4.

install/login/default-keyring.sh

@@ -1,20 +0,0 @@
-KEYRING_DIR="$HOME/.local/share/keyrings"
-KEYRING_FILE="Default_keyring.keyring"
-DEFAULT_FILE="default"
-
-cat << EOF | tee "$KEYRING_FILE"
-[keyring]
-display-name=Default keyring
-ctime=$(date +%s)
-mtime=0
-lock-on-idle=false
-lock-after=false
-EOF
-
-cat << EOF | tee "$DEFAULT_FILE"
-Default_keyring
-EOF
-
-chmod 700 "$KEYRING_DIR"
-chmod 600 "$KEYRING_FILE"
-chmod 644 "$DEFAULT_FILE"