Revert "Install usrmerge for Debian integration test"

This reverts commit 95ac861.
Solution needs to be provided in code

Author: schaefi

build-tests/x86/debian/test-image-live-disk/appliance.kiwi

@@ -82,14 +82,15 @@
         <package name="isc-dhcp-client"/>
         <package name="netbase"/>
         <package name="bsdmainutils"/>
+        <package name="usrmerge"/>
+        <package name="usr-is-merged"/>
         <package name="netplan.io"/>
         <package name="networkd-dispatcher"/>
         <package name="net-tools"/>
         <package name="dbus"/>
         <package name="netbase"/>
         <package name="locales-all"/>
         <package name="tzdata"/>
-        <package name="usr-is-merged"/>
     </packages>
     <packages type="image" profiles="Virtual">
         <package name="shim-signed"/>
@@ -102,7 +103,5 @@
         <package name="dracut-kiwi-oem-repart"/>
         <package name="dracut-kiwi-oem-dump"/>
     </packages>
-    <packages type="bootstrap">
-        <package name="usrmerge"/>
-    </packages>
+    <packages type="bootstrap"/>
 </image>