refactor: remove unused device property from Function

Author: cpcloud

numba_cuda/numba/cuda/cudadrv/driver.py

@@ -2318,7 +2318,7 @@ def get_function(self, name):
         driver.cuModuleGetFunction(
             byref(handle), self.handle, name.encode("utf8")
         )
-        return CtypesFunction(weakref.proxy(self), handle, name)
+        return CtypesFunction(handle, name)
 
     def get_global_symbol(self, name):
         ptr = drvapi.cu_device_ptr()
@@ -2332,7 +2332,7 @@ def get_global_symbol(self, name):
 class CudaPythonModule(Module):
     def get_function(self, name):
         handle = driver.cuModuleGetFunction(self.handle, name.encode("utf8"))
-        return CudaPythonFunction(weakref.proxy(self), handle, name)
+        return CudaPythonFunction(handle, name)
 
     def get_global_symbol(self, name):
         ptr, size = driver.cuModuleGetGlobal(self.handle, name.encode("utf8"))
@@ -2350,19 +2350,14 @@ class Function(metaclass=ABCMeta):
     stream = 0
     sharedmem = 0
 
-    def __init__(self, module, handle, name):
-        self.module = module
+    def __init__(self, handle, name):
         self.handle = handle
         self.name = name
         self.attrs = self.read_func_attr_all()
 
     def __repr__(self):
         return "<CUDA function %s>" % self.name
 
-    @property
-    def device(self):
-        return self.module.context.device
-
     @abstractmethod
     def cache_config(
         self, prefer_equal=False, prefer_cache=False, prefer_shared=False