package/xerces: drop cmake workaround

Drop workaround for cmake < 3.10 (not needed since commit
d4773b610a40be1d3ac7d793033abaf4eb2491ed)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
1 file changed