QmlJS: remove unused QtQuick2 check

Change-Id: I7d613ba825a5ce3d4d8302adff9c98f751bc7ab1
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@qt.io>

src/libs/qmljs/qmljscheck.cpp

@@ -664,13 +664,11 @@ Check::Check(Document::Ptr doc, const ContextPtr &context)
     , _importsOk(false)
     , _inStatementBinding(false)
     , _imports(nullptr)
-    , _isQtQuick2(false)
 
 {
     _imports = context->imports(doc.data());
     if (_imports && !_imports->importFailed()) {
         _importsOk = true;
-        _isQtQuick2 = isQtQuick2();
     }
 
     _enabledMessages = Utils::toSet(Message::allMessageTypes());
@@ -681,12 +679,9 @@ Check::Check(Document::Ptr doc, const ContextPtr &context)
     disableMessage(HintOneStatementPerLine);
     disableMessage(HintExtraParentheses);
 
-    if (isQtQuick2Ui()) {
-        disableQmlDesignerChecks();
-    } else {
-        disableQmlDesignerChecks();
+    disableQmlDesignerChecks();
+    if (!isQtQuick2Ui())
         disableQmlDesignerUiFileChecks();
-    }
 }
 
 Check::~Check()

src/libs/qmljs/qmljscheck.h

@@ -154,7 +154,6 @@ private:
     bool _importsOk;
     bool _inStatementBinding;
     const Imports *_imports;
-    bool _isQtQuick2;
 };
 
 } // namespace QmlJS