Bug 23324: (QA follow-up) Typo and remove unneeded use statement

Bug 23324: (QA follow-up) Typo and remove unneeded use statement

Two typos in POD typo for routine name.
Remove "use Business::ISBN" from Normalize.pm.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit b48e2d5e7a41511dccadb01808e1ece259c5f0b9)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit c8d170a6883c5b72de270ad556abd78080d3cf16)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>