revert commit 6710. It was supposed to go into the 2.0.1 branch

[[Imported from SVN: r6724]]

dune/grid/uggrid/uggridintersections.hh

@@ -83,7 +83,7 @@ namespace Dune {
     }
 
     //! return information about the Boundary
-    int boundaryId () const {
+    int boundaryId () const DUNE_DEPRECATED {
       return boundarySegmentIndex();
     }
 
@@ -269,7 +269,7 @@ namespace Dune {
     }
 
     //! return information about the Boundary
-    int boundaryId () const {
+    int boundaryId () const DUNE_DEPRECATED {
       return boundarySegmentIndex();
     }