[CLN] Remove device_props from XPUBackend as unused (#5352)

Signed-off-by: Anatoly Myachev <[email protected]>

Author: anmyachev

third_party/intel/backend/compiler.py

@@ -82,7 +82,6 @@ def get_ops_per_channel(lhs_type, rhs_type):
 
 
 class XPUBackend(BaseBackend):
-    device_props: dict = {}
     instrumentation = None
 
     @staticmethod
@@ -121,13 +120,6 @@ def parse_target(self, tgt_prop) -> dict:
         dev_prop['has_subgroup_2d_block_io'] = tgt_prop.get('has_subgroup_2d_block_io', False)
         dev_prop['has_bfloat16_conversions'] = tgt_prop.get('has_bfloat16_conversions', True)
 
-        if not self.device_arch:
-            return dev_prop
-
-        if self.device_arch in self.device_props:
-            dev_prop.update(self.device_props[self.device_arch])
-            return dev_prop
-
         return dev_prop
 
     def parse_options(self, opts) -> Any: