Add SeekBarDialogPreference

This change removes SeekBarDialog class.

Change-Id: I437b1e554a5af264b8031ebe05b8250a831c8d3b
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 2f1a209..5c6d0e8 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -434,4 +434,9 @@
         <!-- Enable proximity characters correction. Disabled by default. -->
         <attr name="enableProximityCharsCorrection" format="boolean" />
     </declare-styleable>
+
+    <declare-styleable name="SeekBarDialogPreference">
+        <attr name="valueFormatText" format="reference" />
+        <attr name="maxValue" format="integer" />
+    </declare-styleable>
 </resources>