diff --git a/api/current.txt b/api/current.txt
index 207a25dc369d5..c7ae305cff3e9 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -18475,10 +18475,6 @@ package android.provider {
   protected static abstract interface ContactsContract.DataUsageStatColumns {
     field public static final java.lang.String LAST_TIME_USED = "last_time_used";
     field public static final java.lang.String TIMES_USED = "times_used";
-    field public static final java.lang.String USAGE_TYPE = "usage_type";
-    field public static final int USAGE_TYPE_CALL = 0; // 0x0
-    field public static final int USAGE_TYPE_LONG_TEXT = 1; // 0x1
-    field public static final int USAGE_TYPE_SHORT_TEXT = 2; // 0x2
   }
 
   public static final class ContactsContract.Directory implements android.provider.BaseColumns {
diff --git a/core/java/android/provider/ContactsContract.java b/core/java/android/provider/ContactsContract.java
index 66083c8e6469c..367d5762e6f7d 100644
--- a/core/java/android/provider/ContactsContract.java
+++ b/core/java/android/provider/ContactsContract.java
@@ -3796,50 +3796,11 @@ public final class ContactsContract {
      * Columns in the Data_Usage_Stat table
      */
     protected interface DataUsageStatColumns {
-        /** What the referenced {@link Data} was used for.
-         * @see DataUsageStatColumns#USAGE_TYPE_CALL
-         * @see DataUsageStatColumns#USAGE_TYPE_LONG_TEXT
-         * @see DataUsageStatColumns#USAGE_TYPE_SHORT_TEXT
-         */
-        public static final String USAGE_TYPE = "usage_type";
-
         /** The last time (in milliseconds) this {@link Data} was used. */
         public static final String LAST_TIME_USED = "last_time_used";
 
-        /** The number of times the referenced {@link Data} has been used for the purpose described
-         * in {@link DataUsageStatColumns#USAGE_TYPE}.
-         */
+        /** The number of times the referenced {@link Data} has been used. */
         public static final String TIMES_USED = "times_used";
-
-        /**
-         * Integer value for USAGE_TYPE.
-         * This type of usage refers to voice interaction, which includes phone calls, voice chat,
-         * and video chat.
-         *
-         * @see DataUsageFeedback#USAGE_TYPE
-         * @see DataUsageStatColumns#USAGE_TYPE
-         */
-        public static final int USAGE_TYPE_CALL = 0;
-
-        /**
-         * Integer value for USAGE_TYPE.
-         * This type of usage refers to text interaction involving longer messages, which includes
-         * email.
-         *
-         * @see DataUsageFeedback#USAGE_TYPE
-         * @see DataUsageStatColumns#USAGE_TYPE
-         */
-        public static final int USAGE_TYPE_LONG_TEXT = 1;
-
-        /**
-         * Integer value for USAGE_TYPE.
-         * This type of usage for text interaction involving shorter messages, which includes SMS
-         * and text chat with email addresses.
-         *
-         * @see DataUsageFeedback#USAGE_TYPE
-         * @see DataUsageStatColumns#USAGE_TYPE
-         */
-        public static final int USAGE_TYPE_SHORT_TEXT = 2;
     }
 
     /**