gnulib: remove 'areadlink' module

Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

bootstrap.conf

@@ -19,7 +19,6 @@
 # gnulib modules used by this package.
 gnulib_modules='
 accept
-areadlink
 bind
 byteswap
 c-ctype