BUG: Remove builtins from __all__
BUG: Remove builtins from __all__

This was introduced in 3ca0eb1136102ff01bcc171f53c106326fa4445b, due to an incorrect implementation of `__dir__` (fixed in the previous commit).

It was never released, so this is not a breaking change.

In that commit, `from numpy import *` would reset all the builtins to their defaults, and set `unicode = str`, `long = int`.

madphysicist/numpy,pbrod/numpy,grlee77/numpy,grlee77/numpy,rgommers/numpy,mhvk/numpy,mhvk/numpy,anntzer/numpy,simongibbons/numpy,simongibbons/numpy,WarrenWeckesser/numpy,abalkin/numpy,rgommers/numpy,mattip/numpy,charris/numpy,mattip/numpy,rgommers/numpy,grlee77/numpy,WarrenWeckesser/numpy,simongibbons/numpy,charris/numpy,pbrod/numpy,pbrod/numpy,jorisvandenbossche/numpy,charris/numpy,madphysicist/numpy,endolith/numpy,pdebuyl/numpy,anntzer/numpy,grlee77/numpy,numpy/numpy,endolith/numpy,seberg/numpy,mattip/numpy,anntzer/numpy,jakirkham/numpy,anntzer/numpy,madphysicist/numpy,jorisvandenbossche/numpy,abalkin/numpy,jorisvandenbossche/numpy,pbrod/numpy,WarrenWeckesser/numpy,endolith/numpy,pdebuyl/numpy,WarrenWeckesser/numpy,numpy/numpy,simongibbons/numpy,mattip/numpy,seberg/numpy,pdebuyl/numpy,mhvk/numpy,jakirkham/numpy,endolith/numpy,simongibbons/numpy,WarrenWeckesser/numpy,grlee77/numpy,madphysicist/numpy,numpy/numpy,jakirkham/numpy,mhvk/numpy,mhvk/numpy,seberg/numpy,rgommers/numpy,seberg/numpy,numpy/numpy,charris/numpy,madphysicist/numpy,jakirkham/numpy,abalkin/numpy,jakirkham/numpy,pdebuyl/numpy,jorisvandenbossche/numpy,jorisvandenbossche/numpy,pbrod/numpy