qbs build: Remove version part from more plugin file names

The QmlDesigner plugins do not conform to the plugin conventions, so
they do not derive from QtcPlugin and were thus overlooked in
35c17ac73a.

Change-Id: Idb67701be448c8d57759c94504cbbcb2dafa9775
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

src/plugins/qmldesigner/componentsplugin/componentsplugin.qbs

@@ -28,6 +28,7 @@ QtcProduct {
         "../../../../share/qtcreator/qml/qmlpuppet/interfaces",
         "../../../../share/qtcreator/qml/qmlpuppet/types",
     ])
+    cpp.internalVersion: ""
 
     Group {
         name: "controls"

src/plugins/qmldesigner/qtquickplugin/qtquickplugin.qbs

@@ -8,6 +8,7 @@ QtcProduct {
 
     cpp.defines: base.concat("QTQUICK_LIBRARY")
     cpp.includePaths: base.concat("../designercore/include")
+    cpp.internalVersion: ""
 
     Group {
         name: "sources"