Remove the systematic bias to the top.

The keyboard used to introduce a systematic bias to the top.
This may have been to compensate an old driver flaw, but it
seems that it is now in the way and causes a lot of mistyped
spaces and backspaces.
This change removes the systematic bias.

Change-Id: Ib65ffba99cbd053d1085d3e6eeaf10a815289fc0
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index ff0458c..a66caa7 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -57,7 +57,7 @@
     <dimen name="mini_keyboard_vertical_correction">-0.330in</dimen>
     <!-- We use "inch", not "dip" because this value tries dealing with physical distance related
          to user's finger. -->
-    <dimen name="keyboard_vertical_correction">-0.05in</dimen>
+    <dimen name="keyboard_vertical_correction">0.0in</dimen>
 
     <fraction name="key_letter_ratio">55%</fraction>
     <fraction name="key_large_letter_ratio">65%</fraction>