Revert the change that tries to zero out a closure's result storage area because the size if unknown in source/callproc.c.
Revert the change that tries to zero out a closure's result storage
area because the size if unknown in source/callproc.c.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator