Drop the device name from the drawing perspective

We have it in the titlebar now, no further need for it

data/ui/DrawingPerspective.ui

@@ -15,23 +15,6 @@
           <object class="GtkBox">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <child>
-              <object class="GtkLabel" id="label_devicename">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="margin_left">20</property>
-                <property name="margin_right">20</property>
-                <property name="label" translatable="yes">device name</property>
-                <attributes>
-                  <attribute name="weight" value="bold"/>
-                </attributes>
-              </object>
-              <packing>
-                <property name="expand">False</property>
-                <property name="fill">False</property>
-                <property name="position">0</property>
-              </packing>
-            </child>
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>

tuhigui/drawingperspective.py

@@ -28,7 +28,6 @@ logger = logging.getLogger('drawingperspective')
 class DrawingPerspective(Gtk.Stack):
     __gtype_name__ = "DrawingPerspective"
 
-    label_devicename = Gtk.Template.Child()
     image_battery = Gtk.Template.Child()
     flowbox_drawings = Gtk.Template.Child()
 
@@ -54,7 +53,6 @@ class DrawingPerspective(Gtk.Stack):
     @device.setter
     def device(self, device):
         self._device = device
-        self.label_devicename.set_text(f'{device.name} - {device.address}')
 
         device.connect('notify::connected', self._on_connected)
         device.connect('notify::listening', self._on_listening_stopped)