remove unwanted label385 in room config window. Fixes #1794

src/gtkgui.glade

@@ -11130,7 +11130,7 @@ Custom</property>
 		      <child>
 			<widget class="GtkLabel" id="instructions_label">
 			  <property name="visible">True</property>
-			  <property name="label" translatable="yes">label385</property>
+			  <property name="label" translatable="yes"></property>
 			  <property name="use_underline">False</property>
 			  <property name="use_markup">False</property>
 			  <property name="justify">GTK_JUSTIFY_LEFT</property>