Revert "Enable GCC on Travis"
Revert "Enable GCC on Travis"

This reverts commit 360909344ae27452d84bc5f4593a0f97d8023539.

Conflicts:
	.travis.yml

dlecan/generic-dns-update,dlecan/generic-dns-update,dlecan/gandi-dns-updater,dlecan/gandi-dns-updater