Remove Java Script

Dear Sayan

Thank you for your nice plugin , but unfortunaitly it was not easy for me .
As I am a new face on word press .

I add Fontawesome java script in my site .
I try to find Edit in apperance . But no any edit bottm.

I hope you can help me to remove this tag from my site .

Warmest regards,

Alex from Japan

The page I need help with: [log in to see the link]