CppTools: Move some decls from header to source

...as there is no client using them.

Change-Id: I2fbbe247e6f4bad537644a9574ddcc0606bfa13e
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>

src/plugins/cpptools/cppelementevaluator.h

@@ -96,31 +96,6 @@ public:
     QString tooltip;
 };
 
-class Unknown : public CppElement
-{
-public:
-    explicit Unknown(const QString &type);
-
-public:
-    QString type;
-};
-
-class CppInclude : public CppElement
-{
-public:
-    explicit CppInclude(const CPlusPlus::Document::Include &includeFile);
-
-public:
-    QString path;
-    QString fileName;
-};
-
-class CppMacro : public CppElement
-{
-public:
-    explicit CppMacro(const CPlusPlus::Macro &macro);
-};
-
 class CppDeclarableElement : public CppElement
 {
 public:
@@ -134,12 +109,6 @@ public:
     QIcon icon;
 };
 
-class CppNamespace : public CppDeclarableElement
-{
-public:
-    explicit CppNamespace(CPlusPlus::Symbol *declaration);
-};
-
 class CppClass : public CppDeclarableElement
 {
 public:
@@ -156,36 +125,4 @@ public:
     QList<CppClass> derived;
 };
 
-class CppFunction : public CppDeclarableElement
-{
-public:
-    explicit CppFunction(CPlusPlus::Symbol *declaration);
-};
-
-class CppEnum : public CppDeclarableElement
-{
-public:
-    explicit CppEnum(CPlusPlus::Enum *declaration);
-};
-
-class CppTypedef : public CppDeclarableElement
-{
-public:
-    explicit CppTypedef(CPlusPlus::Symbol *declaration);
-};
-
-class CppVariable : public CppDeclarableElement
-{
-public:
-    CppVariable(CPlusPlus::Symbol *declaration,
-                const CPlusPlus::LookupContext &context,
-                CPlusPlus::Scope *scope);
-};
-
-class CppEnumerator : public CppDeclarableElement
-{
-public:
-    explicit CppEnumerator(CPlusPlus::EnumeratorDeclaration *declaration);
-};
-
 } // namespace CppTools