Revert "Render labels using Text.QtRendering on OSX"

This reverts commit f0e3c19a34.

plugins/Marketplace/resources/qml/PackageCard.qml

@@ -29,13 +29,16 @@ Rectangle
 
             anchors.fill: parent
 
-            UM.Label
+            Label
             {
                 id: descriptionLabel
                 width: parent.width
 
                 text: packageData.description
+                font: UM.Theme.getFont("default")
+                color: UM.Theme.getColor("text")
                 maximumLineCount: 2
+                wrapMode: Text.Wrap
                 elide: Text.ElideRight
                 visible: text !== ""
             }