Bug 31390: Remove noisy warns in C4::Templates

Bug 31390: Remove noisy warns in C4::Templates

This patch removes two noisy warnings from C4::Templates

0) Apply patch and koha-plack --restart kohadev
1) Go to http://localhost:8081/
2) Note no warnings in /var/log/koha/kohadev/plack-intranet-error.log
3) Go to http://localhost:8080/
3) Note no warnings in /var/log/koha/kohadev/plack-opac-error.log

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>