Turn off forced debug builds

For many years, rawhide kernels have forced users to run debug builds on git snapshots by not building a non debug kernel as an option. While this has served us well, in finding occasional bugs that are less likely to surface otherwise, the performance of debug kernels has gotten considerably worse over time. After evaluating the debug configs to see if performance could be improved, it has become clear that we would have to trade off too much to regain performance. We would be better served by leaving more debug options enabled and offering a non debug kernel for all users on all builds.

Signed-off-by: Justin M. Forbes jforbes@fedoraproject.org