Remove UidRange.createForUser() with userId integers

UidRange will be a part of connectivity mainline module.
Mainline modules should use strongly-typed UserHandle arguments.
The method also refer to the hidden UserHandle.PER_USER_RANGE
which is not available after UidRange is moved into module.
Thus, replace the usage and remove the createForUser method that
takes userId parameter.

Bug: 170598012
Test: atest FrameworksNetTests
Change-Id: I3f33ea92c4a24342af9ec4b0367c50bb64ce6450

core/java/android/net/UidRange.java

@@ -42,10 +42,6 @@ public final class UidRange implements Parcelable {
         stop  = stopUid;
     }
 
-    public static UidRange createForUser(int userId) {
-        return new UidRange(userId * PER_USER_RANGE, (userId + 1) * PER_USER_RANGE - 1);
-    }
-
     /** Creates a UidRange for the specified user. */
     public static UidRange createForUser(UserHandle user) {
         final UserHandle nextUser = UserHandle.of(user.getIdentifier() + 1);