Remove numbers::invalid_manifold_id

diff --git a/include/deal.II/base/types.h b/include/deal.II/base/types.h
index 84d89fa6af3fcc5f0f26ba1445656f4cc9b68028..53310129e9b4a29576a646fcf3a3224752bf962b 100644 (file)
--- a/include/deal.II/base/types.h
+++ b/include/deal.II/base/types.h
@@ -250,20 +250,6 @@ namespace numbers
   const types::boundary_id internal_face_boundary_id =
     static_cast<types::boundary_id>(-1);
 
-  /**
-   * Invalid manifold_id which we need in several places as a default value.
-   * We assume that all valid manifold_ids lie in the range [0,
-   * invalid_manifold_id).
-   *
-   * @deprecated Use flat_manifold_id instead.
-   *
-   * @see
-   * @ref GlossManifoldIndicator "Glossary entry on manifold indicators"
-   */
-  DEAL_II_DEPRECATED
-  const types::manifold_id invalid_manifold_id =
-    static_cast<types::manifold_id>(-1);
-
   /**
    * A manifold_id we reserve for the default flat Cartesian manifold.
    *