repart: Remove bogus check

The --empty option applies to the partition table of the block
device, not the number of definition files we've read. Also, even
if we don't find any definition files, let's not shortcut execution
so we can run repart on a device/loopback file to get information
on the partition table.

src/partition/repart.c

@@ -6323,11 +6323,6 @@ static int run(int argc, char *argv[]) {
         if (r < 0)
                 return r;
 
-        if (context->n_partitions <= 0 && arg_empty == EMPTY_REFUSE) {
-                log_info("Didn't find any partition definition files, nothing to do.");
-                return 0;
-        }
-
         r = find_root(&node, &backing_fd);
         if (r < 0)
                 return r;