[buildsystem] Do not call check for Boost base.

With the removal of the fall-back code for many C++11 features
like shared_ptr or hash, we no longer need Boost in
dune-common.
If your model has relies on a boost check, add the call to
the buildsystem of your module. The Dune-islt commit
…3ee92f05012 is an example what must be done.

cmake/modules/DuneCommonMacros.cmake

@@ -25,4 +25,3 @@ include(AddGMPFlags)
 find_package(Inkscape)
 include(UseInkscape)
 include(FindMProtect)
-include(DuneBoost)

m4/dune_common.m4

@@ -23,7 +23,6 @@ AC_DEFUN([DUNE_COMMON_CHECKS],
   AC_REQUIRE([CXX11_CONSTEXPR_CHECK])
   AC_REQUIRE([DUNE_CXX11_NOEXCEPT_SPECIFIER_CHECK])
   AC_REQUIRE([DUNE_CXX11_RANGE_BASED_FOR])
-  AC_REQUIRE([DUNE_BOOST_BASE])
   AC_REQUIRE([DUNE_LINKCXX])
   AC_REQUIRE([DUNE_CHECKDEPRECATED])
   AC_REQUIRE([DUNE_CHECKFINAL])