Remove deprecated APIs DPM.createUser, createAndInitializeUser

They were deprecated in M and slated for removal in N.

Bug: 26974903
Change-Id: I7ae4d60bcf226c1e1de42852b378ad1ff71a914b
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index ae63a2f..83941c9 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -4536,14 +4536,10 @@
      *         user could not be created.
      *
      * @deprecated From {@link android.os.Build.VERSION_CODES#M}
+     * @removed From {@link android.os.Build.VERSION_CODES#N}
      */
     @Deprecated
     public UserHandle createUser(@NonNull ComponentName admin, String name) {
-        try {
-            return mService.createUser(admin, name);
-        } catch (RemoteException re) {
-            Log.w(TAG, REMOTE_EXCEPTION_MESSAGE, re);
-        }
         return null;
     }
 
@@ -4573,16 +4569,11 @@
      *         user could not be created.
      *
      * @deprecated From {@link android.os.Build.VERSION_CODES#M}
+     * @removed From {@link android.os.Build.VERSION_CODES#N}
      */
     @Deprecated
     public UserHandle createAndInitializeUser(@NonNull ComponentName admin, String name,
             String ownerName, @NonNull ComponentName profileOwnerComponent, Bundle adminExtras) {
-        try {
-            return mService.createAndInitializeUser(admin, name, ownerName, profileOwnerComponent,
-                    adminExtras);
-        } catch (RemoteException re) {
-            Log.w(TAG, REMOTE_EXCEPTION_MESSAGE, re);
-        }
         return null;
     }