Fix build

Change-Id: I22b1a24e619a9cb851f99c03792141a8b64e7b74
Reviewed-on: http://codereview.qt-project.org/5808


Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/coreplugin/core.qrc

@@ -48,7 +48,6 @@
         <file>images/category_texteditor.png</file>
         <file>images/category_help.png</file>
         <file>images/category_design.png</file>
-        <file>images/category_qt.png</file>
         <file>editormanager/BinFiles.mimetypes.xml</file>
         <file>images/progressbar.png</file>
         <file>images/help.png</file>