diff --git a/src/plugins/clangcodemodel/test/clangcodecompletion_test.cpp b/src/plugins/clangcodemodel/test/clangcodecompletion_test.cpp
index cb8105a33a1..495f3c6ea3c 100644
--- a/src/plugins/clangcodemodel/test/clangcodecompletion_test.cpp
+++ b/src/plugins/clangcodemodel/test/clangcodecompletion_test.cpp
@@ -697,126 +697,6 @@ void ClangCodeCompletionTest::testCompleteProjectDependingCodeInGeneratedUiFile(
     QVERIFY(hasItem(proposal, "setupUi"));
 }
 
-void ClangCodeCompletionTest::testCompleteAfterModifyingIncludedHeaderInOtherEditor()
-{
-    QSKIP("We don't reparse anymore before a code completion so we get wrong completion results.");
-
-    CppTools::Tests::TemporaryDir temporaryDir;
-    const TestDocument sourceDocument("mysource.cpp", &temporaryDir);
-    QVERIFY(sourceDocument.isCreatedAndHasValidCursorPosition());
-    const TestDocument headerDocument("myheader.h", &temporaryDir);
-    QVERIFY(headerDocument.isCreated());
-
-    // Test that declarations from header file are visible in source file
-    OpenEditorAtCursorPosition openSource(sourceDocument);
-    QVERIFY(openSource.succeeded());
-    TextEditor::ProposalModelPtr proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-
-    // Open header and insert a new declaration
-    OpenEditorAtCursorPosition openHeader(headerDocument);
-    QVERIFY(openHeader.succeeded());
-    insertTextAtTopOfEditor(openHeader.editor(), "int globalFromHeaderUnsaved;\n");
-
-    // Switch back to source file and check if modified header is reflected in completions.
-    Core::EditorManager::activateEditor(openSource.editor());
-    QCoreApplication::processEvents(); // connections are queued
-    proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-    QVERIFY(hasItem(proposal, "globalFromHeaderUnsaved"));
-}
-
-void ClangCodeCompletionTest::testCompleteAfterModifyingIncludedHeaderByRefactoringActions()
-{
-    QSKIP("We don't reparse anymore before a code completion so we get wrong completion results.");
-
-    CppTools::Tests::TemporaryDir temporaryDir;
-    const TestDocument sourceDocument("mysource.cpp", &temporaryDir);
-    QVERIFY(sourceDocument.isCreatedAndHasValidCursorPosition());
-    const TestDocument headerDocument("myheader.h", &temporaryDir);
-    QVERIFY(headerDocument.isCreated());
-
-    // Open header
-    OpenEditorAtCursorPosition openHeader(headerDocument);
-    QVERIFY(openHeader.succeeded());
-
-    // Open source and test that declaration from header file is visible in source file
-    OpenEditorAtCursorPosition openSource(sourceDocument);
-    QVERIFY(openSource.succeeded());
-    TextEditor::ProposalModelPtr proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-
-    // Modify header document without switching to its editor.
-    // This simulates e.g. changes from refactoring actions.
-    ::Utils::ChangeSet cs;
-    cs.insert(0, QLatin1String("int globalFromHeaderUnsaved;\n"));
-    QTextCursor textCursor = openHeader.editor()->textCursor();
-    cs.apply(&textCursor);
-
-    // Check whether modified header is reflected in the completions.
-    proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-    QVERIFY(hasItem(proposal, "globalFromHeaderUnsaved"));
-}
-
-void ClangCodeCompletionTest::testCompleteAfterChangingIncludedAndOpenHeaderExternally()
-{
-    QSKIP("The file system watcher is doing it in backend process but we wait not long enough");
-
-    ChangeDocumentReloadSetting reloadSettingsChanger(Core::IDocument::ReloadUnmodified);
-
-    CppTools::Tests::TemporaryDir temporaryDir;
-    const TestDocument sourceDocument("mysource.cpp", &temporaryDir);
-    QVERIFY(sourceDocument.isCreatedAndHasValidCursorPosition());
-    const TestDocument headerDocument("myheader.h", &temporaryDir);
-    QVERIFY(headerDocument.isCreated());
-
-    // Open header
-    OpenEditorAtCursorPosition openHeader(headerDocument);
-    QVERIFY(openHeader.succeeded());
-
-    // Open source and test completions
-    OpenEditorAtCursorPosition openSource(sourceDocument);
-    QVERIFY(openSource.succeeded());
-    TextEditor::ProposalModelPtr proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-
-    // Simulate external modification and wait for reload
-    WriteFileAndWaitForReloadedDocument waitForReloadedDocument(
-                headerDocument.filePath,
-                "int globalFromHeaderReloaded;\n",
-                openHeader.editor()->document());
-    QVERIFY(waitForReloadedDocument.wait());
-
-    // Retrigger completion and check if its updated
-    proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeaderReloaded"));
-}
-
-void ClangCodeCompletionTest::testCompleteAfterChangingIncludedAndNotOpenHeaderExternally()
-{
-    QSKIP("The file system watcher is doing it in backend process but we wait not long enough");
-
-    CppTools::Tests::TemporaryDir temporaryDir;
-    const TestDocument sourceDocument("mysource.cpp", &temporaryDir);
-    QVERIFY(sourceDocument.isCreatedAndHasValidCursorPosition());
-    const TestDocument headerDocument("myheader.h", &temporaryDir);
-    QVERIFY(headerDocument.isCreated());
-
-    // Open source and test completions
-    OpenEditorAtCursorPosition openSource(sourceDocument);
-    QVERIFY(openSource.succeeded());
-    TextEditor::ProposalModelPtr proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeader"));
-
-    // Simulate external modification, e.g version control checkout
-    QVERIFY(writeFile(headerDocument.filePath, "int globalFromHeaderReloaded;\n"));
-
-    // Retrigger completion and check if its updated
-    proposal = completionResults(openSource.editor());
-    QVERIFY(hasItem(proposal, "globalFromHeaderReloaded"));
-}
-
 } // namespace Tests
 } // namespace Internal
 } // namespace ClangCodeModel
diff --git a/src/plugins/clangcodemodel/test/clangcodecompletion_test.h b/src/plugins/clangcodemodel/test/clangcodecompletion_test.h
index b2013550cc3..f2b64048e83 100644
--- a/src/plugins/clangcodemodel/test/clangcodecompletion_test.h
+++ b/src/plugins/clangcodemodel/test/clangcodecompletion_test.h
@@ -54,11 +54,6 @@ private slots:
     void testCompleteProjectDependingCode();
     void testCompleteProjectDependingCodeAfterChangingProject();
     void testCompleteProjectDependingCodeInGeneratedUiFile();
-
-    void testCompleteAfterModifyingIncludedHeaderInOtherEditor();
-    void testCompleteAfterModifyingIncludedHeaderByRefactoringActions();
-    void testCompleteAfterChangingIncludedAndOpenHeaderExternally();
-    void testCompleteAfterChangingIncludedAndNotOpenHeaderExternally();
 };
 
 } // namespace Tests