Removed empty file

Change-Id: Ic94b4d2cd971828845c007d1a392e24c85d9a26a
diff --git a/src/com/android/datetimepicker/date/OnDateChangedListener.java b/src/com/android/datetimepicker/date/OnDateChangedListener.java
deleted file mode 100644
index e69de29..0000000
--- a/src/com/android/datetimepicker/date/OnDateChangedListener.java
+++ /dev/null