Revert "Attempt at showing spelling errors"

This reverts commit a03efb6d.
7 jobs for fix_pycbc_references in 2 minutes and 36 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #392047
doctest

00:02:30

passed #392045
html

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passed #392048
latexpdf

00:02:35

passed #392049
linkcheck

00:02:19

passed #392050
spelling

00:02:06

manual #392046
allowed to fail manual
stop review
passed #392044
validate-voevents

00:00:37