Removed an incorrect date/time example from the docs

docs/_pages/datetimespans.md

@@ -43,10 +43,6 @@ var theDatetimeOffset = 1.March(2010).At(22, 15).WithOffset(2.Hours());
 // Asserts the point in time. 
 theDatetimeOffset.Should().Be(1.March(2010).At(21, 15).WithOffset(1.Hours()));          
 theDatetimeOffset.Should().NotBe(1.March(2010).At(21, 15).WithOffset(1.Hours())); 
-
-//Asserts the calendar date/time and the offset
-theDatetimeOffset.Should().BeExactly(1.March(2010).At(21, 15).WithOffset(1.Hours()));   
-theDatetimeOffset.Should().NotBeExactly(1.March(2010).At(21, 15).WithOffset(1.Hours()));
 ```
 
 Notice how we use extension methods like `March`, `At` to represent dates in a more human readable form. There's a lot more like these, including `2000.Microseconds()`, `3.Nanoseconds` as well as methods like `AsLocal` and `AsUtc` to convert between representations. You can even do relative calculations like `2.Hours().Before(DateTime.Now)`.