code simplification

Cython/Compiler/ExprNodes.py

@@ -10029,9 +10029,3 @@ proto="""
 #define UNARY_NEG_WOULD_OVERFLOW(x)    \
         (((x) < 0) & ((unsigned long)(x) == 0-(unsigned long)(x)))
 """)
-
-generator_utility_code = UtilityCode.load(
-    "Generator",
-    "Generator.c",
-    requires=[Nodes.raise_utility_code, Nodes.swap_exception_utility_code],
-)

Cython/Compiler/Nodes.py

@@ -3560,8 +3560,7 @@ class GeneratorDefNode(DefNode):
         code.putln('}')
 
     def generate_function_definitions(self, env, code):
-        from ExprNodes import generator_utility_code
-        env.use_utility_code(generator_utility_code)
+        env.use_utility_code(UtilityCode.load_cached("Generator", "Generator.c"))
 
         self.gbody.generate_function_header(code, proto=True)
         super(GeneratorDefNode, self).generate_function_definitions(env, code)