ClangCodeModel: Retrieve all kinds of clangd tweaks

Contrary to our expectation, the "quickfix" tweaks are not part of the
inline code actions after all.
User-observable effect: "Populate switch" becomes available.
Amends 8b63dfccc6.

Change-Id: I4f7fa25a58bb54dbdb470d7db064b4d804c34d26
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/languageclient/languageclientquickfix.h

@@ -85,8 +85,6 @@ private:
     QSharedPointer<const TextEditor::AssistInterface> m_assistInterface;
     Client *m_client = nullptr; // not owned
     Utils::optional<LanguageServerProtocol::MessageId> m_currentRequest;
-    QList<LanguageServerProtocol::CodeActionKind> m_onlyKinds;
 };
 
-
 } // namespace LanguageClient