CI: codespell: drop obsolete list of ignored words

codespell was dropped via a63011b3. Accordingly, this commit does some cleanup.

CI: codespell: drop obsolete list of ignored words
b9677d86 · georg · 6fde80d3 · 6fde80d3
Commit b9677d86 authored 2 years ago by georg
--- a/utils/ci/codespell/ignored_words.txt
+++ b/utils/ci/codespell/ignored_words.txt
-# Words to be ignored by codespell.
-# Put one word per line and sort alphabetically.
-process'