Removes r from the list.
The range to remove.
Range spanning the elements just after r.
Precondition: r is extracted from this list.
auto l1 = DList!int([5, 234, 30, 1]); auto l2 = DList!int([5]); auto r = l1[]; r.popFront(); assert(l1.remove(r).empty); assert(l1 == l2);
See Implementation
Removes r from the list.