Remove switch tags from svg files

[akihironitta]

Before submitting

• Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• [n/a] Did you make sure to update the docs?
• [n/a] Did you write any new necessary tests?

What does this PR do?

Fixes #135.

Used the following command to remove the tags:

find ./course_UvA-DL/ -type f -exec sed -i -- 's|<switch><g .*<\/switch>||g' {} +

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

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[codecov]

Codecov Report

Merging #171 (ea8aa51) into main (01f7b62) will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff         @@
##           main   #171   +/-   ##
===================================
  Coverage    75%    75%           
===================================
  Files         2      2           
  Lines       370    370           
===================================
  Hits        276    276           
  Misses       94     94           

[akihironitta]

Pasting one of the diffs in case reviewers can't see it in their browsers: