Editing CSL: Removing quotation marks from journal article title

Hi,
I've edited the IEEE citation style by getting rid of the 'et al', removing the italics on the journal name and adding italics to the journal article name. However, I'm not sure how to get rid of the quotation marks surrounding the journal article name, as shown below:

[1]
B. Gault, X. Y. Cui, M. P. Moody, A. V. Ceguerra, A. J. Breen, R. K. W. Marceau, and S. P. Ringer, “A nexus between 3D atomistic data hybrids derived from atom probe microscopy and computational materials science: A new analysis of solute clustering in Al-alloys,” Scr. Mater., vol. 131, pp. 93–97, Apr. 2017.

Here is my code:
https://pastebin.com/jCD8R7pj

Thanks in advance!
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