Editor: make sure to update marker on annotation change

Ensures an update for the markers editor widget after any of the
information displayed in the annotation has changed

Change-Id: I845e05f5103ee1615cfc3d7760cdfc2bbf510f32
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/clangtools/diagnosticmark.cpp

@@ -89,7 +89,6 @@ void DiagnosticMark::disable()
     else
         setIcon(Utils::Icons::CODEMODEL_DISABLED_WARNING.icon());
     setColor(Utils::Theme::Color::IconsDisabledColor);
-    updateMarker();
 }
 
 bool DiagnosticMark::enabled() const