Remove duplicate images

[engnadeau]

• Found duplicates: https://docs.google.com/spreadsheets/d/16ZSR35hCNXqdB3-Q4DGOTXJXMSNfTsSn4zkFyOBCdPo/edit?usp=sharing
• Use filename to get images from assets/media, e.g.,:

# Featured image
# To use, add an image named `featured.jpg/png` to your page's folder.
# Focal points: Smart, Center, TopLeft, Top, TopRight, Left, Right, BottomLeft, Bottom, BottomRight.
image:
  filename: "3dp-lab.jpg"
  caption: ""
  focal_point: ""
  preview_only: false

• See https://github.com/wowchemy/wowchemy-hugo-themes/pull/2799/files for details