Fix extra dimension.

Bug: 15328499
Change-Id: I6a7afd988a879628aac346219ffba4e521f0bc60
diff --git a/res-common/values/dimens.xml b/res-common/values/dimens.xml
index ebbe555..a966dcd 100644
--- a/res-common/values/dimens.xml
+++ b/res-common/values/dimens.xml
@@ -125,7 +125,6 @@
     <dimen name="dialpad_digits_margin_bottom">22dp</dimen>
     <dimen name="dialpad_digits_padding">16dp</dimen>
     <dimen name="dialpad_digits_menu_right_padding">10dp</dimen>
-    <dimen name="dialpad_digits_margin_bottom">0px</dimen>
     <dimen name="dialpad_center_margin">3dp</dimen>
     <dimen name="dialpad_button_margin">2dp</dimen>
     <dimen name="dialpad_voicemail_icon_padding_top">2dp</dimen>