- Disable unsafe SVGO defaults as defined on:
  https://www.mediawiki.org/wiki/Manual:Coding_conventions/SVG#Exemplified_safe_configuration:.

- Revert over-optimized images in 38056c39.

Bug: T186031
Change-Id: I9b3bf1bc9652aab2586055c826bba1b3d0c7d58d