Allow for thread_core_ratio of above 1.0 if reserved_core isn't set

Created by: keithprestonsc

This changes the logic to make thread_core above 1 work

Previously we unconditionally ran: if (scaledValue > threadLimit) { scaledValue = threadLimit; }

Which eliminated values over 1.0.

Now we only run it if reserved_core is set

Also with the new logic "thread_core_ratio_max_cores is larger than thread_core_ratio_reserved_cores allows"); is not necessary.