kernels: dedup condition in Device (#571)

Author: danieldk

kernels/src/kernels/layer/device.py

@@ -150,9 +150,6 @@ def __post_init__(self):
         if self.properties is not None and isinstance(self.properties, ROCMProperties):
             if self.type != "rocm":
                 raise ValueError("ROCMProperties is only supported for 'rocm' devices.")
-        if self.properties is not None and isinstance(self.properties, ROCMProperties):
-            if self.type != "rocm":
-                raise ValueError("ROCMProperties is only supported for 'rocm' devices.")
 
     def __eq__(self, other):
         if not isinstance(other, Device):