It looks like one version of the class was first added [1] and then a
few days later, another was written [2]. The newer declaration appeared
lower in the file, allowing it to hide the other.

This removes the first, hidden declaration.

[1] commit 7aa493ec
    Date:   Fri Mar 1 10:36:20 2013 -0500
[2] commit f62dad2f
    Date:   Tue Mar 5 16:31:02 2013 -0500