review comment:

- remove `IsDerivative` property as it was not used in `hctdb.py`

Author: inbelic

llvm/lib/Target/DirectX/DXIL.td

@@ -285,7 +285,6 @@ def NoReturn : DXILAttribute;
 class DXILProperty;
 
 def IsBarrier : DXILProperty;
-def IsDerivative : DXILProperty;
 def IsGradient : DXILProperty;
 def IsFeedback : DXILProperty;
 def IsWave : DXILProperty;