...where firebird's replacements of global new/delete would still be called for
"new" but not for "delete".  Lets hope that always adding the C++14 size_t
overloads of operator delete is harmless in all relevant pre-C++14 environments,
and only causes harmless warnings like -Wimplicit-exception-spec-mismatch in all
relevant C++14 environments.

(But why does a /library/ replace global new/delete in the first place?)

Change-Id: Ib0b0ad748c6641c07ffed6cec3d6809a1530679f
Reviewed-on: https://gerrit.libreoffice.org/19081Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>