HURD backend should compile again

Fixes a bug introduced by commit 82c06b47dea5a38075ce9d56f743360bc47b4c78.
diff --git a/lib/hurd.c b/lib/hurd.c
index 7b3b2ae..ccd92f6 100644
--- a/lib/hurd.c
+++ b/lib/hurd.c
@@ -307,8 +307,7 @@
       d->base_addr[i] |= regions[i].is_64 << 2;
       d->base_addr[i] |= regions[i].is_prefetchable << 3;
 
-      if (flags & PCI_FILL_SIZES)
-	d->size[i] = regions[i].size;
+      d->size[i] = regions[i].size;
     }
 }