Remove -module flag from Makefile.am
Remove -module flag from Makefile.am

This causes a warning in compile when used from its packaged form. From
what I can see there is no reason to have this.

Signed-off-by: Aaron Bedra <5a7a6a189b47cd31d24667a751e4003cd04eced5@aaronbedra.com>

prokopowicz/librepsheet,repsheet/librepsheet,davidhanley/librepsheet,davidhanley/librepsheet,prokopowicz/librepsheet,repsheet/librepsheet,davidhanley/librepsheet,prokopowicz/librepsheet,repsheet/librepsheet