Bug 17496: Remove undocumented/maintained install-CPAN.pl file

Bug 17496: Remove undocumented/maintained install-CPAN.pl file

The install-CPAN.pl file was added in 2007 and hasn't been
updated or documented since.

This patch removed it from Koha.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit cab238755a69ca7e52b3822b390b31484abb5c72)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 9f065fe43f62f2bfbecc15b7267d06a9c62b1638)

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