Project managers: Remove dependency to Qt Designer.

Remove from pluginspec.in as well, complete
b606469a.

src/plugins/cmakeprojectmanager/CMakeProjectManager.pluginspec.in

@@ -17,6 +17,5 @@ Alternatively, this plugin may be used under the terms of the GNU Lesser General
         <dependency name=\"TextEditor\" version=\"$$QTCREATOR_VERSION\"/>
         <dependency name=\"ProjectExplorer\" version=\"$$QTCREATOR_VERSION\"/>
         <dependency name=\"CppTools\" version=\"$$QTCREATOR_VERSION\"/>
-        <dependency name=\"Designer\" version=\"$$QTCREATOR_VERSION\"/>
     </dependencyList>
 </plugin>

src/plugins/qt4projectmanager/Qt4ProjectManager.pluginspec.in

@@ -17,7 +17,6 @@ Alternatively, this plugin may be used under the terms of the GNU Lesser General
         <dependency name=\"TextEditor\" version=\"$$QTCREATOR_VERSION\"/>
         <dependency name=\"ProjectExplorer\" version=\"$$QTCREATOR_VERSION\"/>
         <dependency name=\"CppTools\" version=\"$$QTCREATOR_VERSION\"/>
-        <dependency name=\"Designer\" version=\"$$QTCREATOR_VERSION\"/>
         <dependency name=\"Debugger\" version=\"$$QTCREATOR_VERSION\"/>
     </dependencyList>
 </plugin>