delete ui file

-<UI version="4.0" >
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow" >
-  <property name="objectName" >
-   <string notr="true">MainWindow</string>
-  </property>
-  <property name="geometry" >
-   <rect>
-	<x>0</x>
-	<y>0</y>
-	<width>400</width>
-	<height>300</height>
-   </rect>
-  </property>
-  <property name="windowTitle" >
-   <string>MainWindow</string>
-  </property>
-  <widget class="QMenuBar" name="menuBar" />
-  <widget class="QToolBar" name="mainToolBar" />
-  <widget class="QWidget" name="centralWidget" />
-  <widget class="QStatusBar" name="statusBar" />  
- </widget>
- <layoutDefault spacing="6" margin="11" />
- <pixmapfunction></pixmapfunction>
- <resources/>
- <connections/>
-</UI>

-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>PaperGraphWidgetClass</class>
- <widget class="QWidget" name="PaperGraphWidgetClass">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>600</width>
-    <height>400</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>PaperGraphWidget</string>
-  </property>
- </widget>
- <layoutdefault spacing="6" margin="11"/>
- <resources>
-  <include location="PaperGraphWidget.qrc"/>
- </resources>
- <connections/>
-</ui>