remove compatibility #define for PyMethod_New() as it breaks the macro definition

--HG--
extra : transplant_source : V%1D%AF%BB%C2%E7l4%28%AE%8C%A9-%B0%B4%11%91%1B%FB%2C

Cython/Utility/ModuleSetupCode.c

@@ -172,10 +172,6 @@
 
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
-  #ifndef PyMethod_New
-    /* for backwards compatibility only, but PyPy redefines PyMethod_New unconditionally */
-    #define PyMethod_New(func, self, klass) __Pyx_PyMethod_New(func, self, klass)
-  #endif
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif