Remove unnecessary lines in split() function

[dvdherron]

Steps to test/reproduce

• Play around with the split() function to make sure it works as expected, in particular when performing a split with an empty $separator.

Please explain how to best reproduce the issue and/or test the changes locally (including the pages/URLs/views/states to review).

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[dvdherron]

I want to remove unnecessary code from the split() function in Accoutrement's string module.