ClangTools: Remove BasicSettingsWidget

This removes the

  [ ] Build the project before Analysis

from the run dialog as it seems unlikely that this option is useful per
project.

Change-Id: I65f2ae8d1e936883f27c360d5b7b518fd31cdf07
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/clangselectablefilesdialog.h

@@ -65,7 +65,6 @@ private:
     Core::Id m_customDiagnosticConfig;
     ProjectExplorer::Project *m_project;
     QPushButton *m_analyzeButton = nullptr;
-    bool m_buildBeforeAnalysis = true;
 };
 
 } // namespace Internal