install: Don't distribute dbus definition

Instead, require virtboard to provide it.

data/dbus/sm.puri.OSK0.xml

@@ -1,20 +0,0 @@
-<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
-"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
-<node xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd">
-  <interface name="sm.puri.OSK0">
-    <method name="SetVisible">
-      <arg name="visible" type="b" direction="in"/>
-      <doc:doc><doc:description>
-        Switch keyboard visibility
-      </doc:description></doc:doc>
-    </method>
-    <method name="GetVisible">
-      <arg name="visible" type="b" direction="out"/>
-      <doc:doc><doc:description>
-        Get keyboard visibility
-      </doc:description></doc:doc>
-    </method>
-    <property name="Visible" type="b" access="read">
-    </property>
-  </interface>
-</node>

data/meson.build

@@ -14,10 +14,6 @@ install_data(
     install_dir: pkgdatadir + '/keyboards/geometry/',
 )
 
-install_data('dbus/sm.puri.OSK0.xml',
-    install_dir: dbusdir
-)
-
 symbols = [
     'ar.xml',
     'as-inscript.xml',