Revert "require symlinks to master checkout"

This reverts commit 2c178f7e55e046c851c80d6085c52d06566fd30a.

Conflicts:
	data/autoinst.xml
	tests/console/consoletest_finish.pm
	tests/installation/first_boot.pm
	tests/installation/livecdreboot.pm
	tests/installation/mediacheck.pm
	tests/installation/scc_registration.pm
	tests/installation/sle11_network.pm
	tests/installation/sle11_user_authentication_method.pm
	tests/installation/sle11_wait_for_2nd_stage.pm
	tests/installation/welcome.pm