add auto create license file and delete self

src/tool/tool_getLicense/mainwindow.ui

@@ -24,7 +24,7 @@
      </rect>
     </property>
     <property name="text">
-     <string>请输入机器码</string>
+     <string>请输入机器码 </string>
     </property>
    </widget>
    <widget class="QPushButton" name="pushButton">