contrib: drop repo-orphans

Use 'kiss U' or 'kiss upgrade' instead.

contrib/kiss-repo-orphans

@@ -1,20 +0,0 @@
-#!/bin/sh -e
-# List packages which aren't present in any repository.
-
-cd "$KISS_ROOT/var/db/kiss/installed"
-
-kiss s ./* | while IFS=/ read -r _ path; do
-    pkg=${path##*/}
-
-    case $seen in *" $pkg "*)
-        continue
-    esac
-
-    case $path in "$PWD/$pkg")
-        printf '%s\n' "$pkg"
-    esac
-
-    seen="$seen $pkg "
-done
-
-