What is the use of the Top fan standing on top of the assembly board?!
Is that to cool the print?! As on smaller pieces where you need to cool I don’t see the use as the printhead is much further forward the the oulet of the air hole ?
Yes, looking to eliminate the top fan 
I had assumed that it’s purpose was to cool the plastic part of the hot end rather than the object being printed which I thought was done by the small fan.
I mean the big one standing up … not the small fan in front
For now I placed it back but could use some more room to make me ‘fatter’ E3D holder.
The purpose of the top fan is to cool the plastic part of the hot-end(s). If you’re using E3D hot-ends you wont need it.