bpo-36091: Remove reference to async generator in Lib/types.py. (GH-1…

bpo-36091: Remove reference to async generator in Lib/types.py. (GH-1… · python/cpython@cd04164

Original file line number	Diff line number	Diff line change
`@@ -55,7 +55,7 @@ def _m(self): pass`
`55`	`55`	`GetSetDescriptorType = type(FunctionType.__code__)`
`56`	`56`	`MemberDescriptorType = type(FunctionType.__globals__)`
`57`	`57`
`58`		`-del sys, _f, _g, _C, _c, # Not for export`
	`58`	`+del sys, _f, _g, _C, _c, _ag # Not for export`
`59`	`59`
`60`	`60`
`61`	`61`	`# Provide a PEP 3115 compliant mechanism for class creation`