[test] remove unused swipd-discretization.hh

dune/gdt/test/linearelliptic/swipdg-discretization.hh

-// This file is part of the dune-gdt project:
-//   https://github.com/dune-community/dune-gdt
-// Copyright 2010-2017 dune-gdt developers and contributors. All rights reserved.
-// License: Dual licensed as BSD 2-Clause License (http://opensource.org/licenses/BSD-2-Clause)
-//      or  GPL-2.0+ (http://opensource.org/licenses/gpl-license)
-//          with "runtime exception" (http://www.dune-project.org/license.html)
-// Authors:
-//   Felix Schindler (2015 - 2017)
-//   Rene Milk       (2016)
-
-#ifndef DUNE_GDT_TEST_LINEARELLIPTIC_SWIPDG_DISCRETIZATION_HH
-#define DUNE_GDT_TEST_LINEARELLIPTIC_SWIPDG_DISCRETIZATION_HH
-
-#include <dune/xt/common/test/common.hh>
-#include <dune/xt/functions/spe10/model1.hh>
-#include <dune/xt/la/container.hh>
-
-#include <dune/gdt/spaces/interface.hh>
-
-#include "eocstudy.hh"
-#include "discretizers/ipdg.hh"
-
-
-template <class TestCaseType>
-struct linearelliptic_SWIPDG_discretization : public ::testing::Test
-{
-  template <Dune::GDT::Backends space_backend, Dune::XT::LA::Backends la_backend, int polOrder>
-  static void eoc_study()
-  {
-    using namespace Dune;
-    using namespace Dune::GDT;
-    TestCaseType test_case;
-    test_case.print_header(DXTC_LOG_INFO);
-    DXTC_LOG_INFO << std::endl;
-    typedef LinearElliptic::IpdgDiscretizer<typename TestCaseType::GridType,
-                                            XT::Grid::Layers::level,
-                                            space_backend,
-                                            la_backend,
-                                            polOrder,
-                                            typename TestCaseType::ProblemType::RangeFieldType,
-                                            1,
-                                            LocalEllipticIpdgIntegrands::Method::swipdg>
-        Discretizer;
-    Dune::GDT::Test::LinearEllipticEocStudy<TestCaseType, Discretizer> eoc_study(test_case);
-    try {
-      Dune::XT::Test::check_eoc_study_for_success(eoc_study, eoc_study.run(DXTC_LOG_INFO));
-    } catch (Dune::XT::Common::Exceptions::spe10_data_file_missing&) {
-      Dune::XT::Common::TimedLogger().get("gdt.test.linearelliptic.swipdg.discretization").warn()
-          << "missing SPE10 data file!" << std::endl;
-    }
-  } // ... eoc_study()
-}; // linearelliptic_SWIPDG_discretization
-
-#endif // DUNE_GDT_TEST_LINEARELLIPTIC_SWIPDG_DISCRETIZATION_HH