remove references to removed file interfaces.hh (damn, same mistake _every_ time

[[Imported from SVN: r5443]]

common/Makefile.am

@@ -14,7 +14,7 @@ commoninclude_HEADERS = dlist.cc alignment.hh \
   arraylist.hh bitfield.hh bitsetvector.hh debugstream.hh deprecated.hh dlist.hh \
   enumset.hh exceptions.hh fixedarray.hh fmatrix.hh \
   fvector.hh genericiterator.hh \
-  helpertemplates.hh interfaces.hh iteratorfacades.hh \
+  helpertemplates.hh iteratorfacades.hh \
   misc.hh poolallocator.hh finitestack.hh \
   sllist.hh smartpointer.hh stack.hh stdstreams.hh timer.hh tuples.hh \
   typetraits.hh precision.hh bigunsignedint.hh \

common/test/parsetest.cc

@@ -30,7 +30,6 @@
 #include <dune/common/gcd.hh>
 #include <dune/common/genericiterator.hh>
 #include <dune/common/helpertemplates.hh>
-#include <dune/common/interfaces.hh>
 #include <dune/common/iteratorfacades.hh>
 #include <dune/common/lcm.hh>
 #include <dune/common/misc.hh>