You do not need the metal crown race, as it's already built into the fork during the mold process. There might be some contention as to whether or not to use it, but it's obvious from the photo it doesn't fit.
For what it's worth...my Winspace T1500, Dengfu R12, and VB 177 all did not need the crown race. I even double checked with my local bike shop just to be certain before making any steer tube cuts.
However, my Yeoleo G21 did need the extra crown race and I was able to close the gap to the headtube.