diff --git a/debian/prerm b/debian/prerm
index 3eca4eb6..355aaa6e 100755
--- a/debian/prerm
+++ b/debian/prerm
@@ -11,50 +11,11 @@ set -e
 package_name=pve-manager;
 
 case "$1" in
-  remove)
-    # This package about to be removed.
-
-    # There are two sub-cases:
-    if test "${2+set}" = set; then
-      if test "$2" != in-favour; then
-        echo "$0: undocumented call to \`prerm $*'" 1>&2
-        exit 0
-      fi
-      # We are being removed because of a conflict with package $3
-      # (version $4), which is now being installed.
-      :
-
-    else
-      # The package is being removed in its own right.
-      :
-
-    fi ;;
-  deconfigure)
-    if test "$2" != in-favour -o "$5" != removing; then
-      echo "$0: undocumented call to \`prerm $*'" 1>&2
-      exit 0
-    fi
-    # Package $6 (version $7) which we depend on is being removed due
-    # to a conflict with package $3 (version $4), and this package is
-    # being deconfigured until $6 can be reinstalled.
-    :
-
-    ;;
+  remove|deconfigure|failed-upgrade) : ;;
   upgrade)
-    # Prepare to upgrade FROM THIS VERSION of this package to version $2.
-
     if [ -L /usr/doc/$package_name ]; then
 	rm -f /usr/doc/$package_name
     fi
-
-
-    ;;
-  failed-upgrade)
-    # Prepare to upgrade from version $2 of this package TO THIS VERSION.
-    # This is only used if the old version's prerm couldn't handle it,
-    # and returned non-zero.  (Fix old prerm bugs here.)
-    :
-
     ;;
   *) echo "$0: didn't understand being called with \`$1'" 1>&2
      exit 0;;