mapi/new: don't print info we don't need for ES1/ES2

mapi/new: don't print info we don't need for ES1/ES2

There is no need for the noop functions, the public_stubs and
public_entries table or table size defines. Remove those.

Pretty much all of this is applicable to GLVND, although it
requires preparatory work.

v2:
 - python style fixes (Dylan)
 - use "gldispatch" instead of not "glesv1" "glesv2"
 - remove the public_entries table/array (Erik)

v3:
 - use if == "gldispatch", instead of "in" (Kyle)

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com> (v2)