doc: Remove registry redirect stuff
doc: Remove registry redirect stuff

This hasn't worked for a loooonnng time.  It's a hazard to have
in the docs and on th website.

kriskowal/npm,midniteio/npm,thomblake/npm,chadnickbok/npm,cchamberlain/npm,segment-boneyard/npm,evocateur/npm,Volune/npm,lxe/npm,princeofdarkness76/npm,midniteio/npm,segrey/npm,DaveEmmerson/npm,lxe/npm,Volune/npm,kemitchell/npm,evocateur/npm,chadnickbok/npm,kimshinelove/naver-npm,midniteio/npm,yyx990803/npm,DIREKTSPEED-LTD/npm,DaveEmmerson/npm,xalopp/npm,haggholm/npm,misterbyrne/npm,ekmartin/npm,TimeToogo/npm,princeofdarkness76/npm,kriskowal/npm,rsp/npm,kriskowal/npm,cchamberlain/npm-msys2,yibn2008/npm,kimshinelove/naver-npm,DaveEmmerson/npm,yodeyer/npm,evocateur/npm,misterbyrne/npm,segrey/npm,haggholm/npm,cchamberlain/npm-msys2,evanlucas/npm,TimeToogo/npm,rsp/npm,segment-boneyard/npm,segmentio/npm,ekmartin/npm,xalopp/npm,yodeyer/npm,yibn2008/npm,yyx990803/npm,cchamberlain/npm,evanlucas/npm,chadnickbok/npm,kemitchell/npm,DIREKTSPEED-LTD/npm,xalopp/npm,yibn2008/npm,Volune/npm,yodeyer/npm,segment-boneyard/npm,thomblake/npm,evanlucas/npm,kemitchell/npm,kimshinelove/naver-npm,ekmartin/npm,princeofdarkness76/npm,thomblake/npm,rsp/npm,segmentio/npm,haggholm/npm,segrey/npm,yyx990803/npm,cchamberlain/npm,segmentio/npm,misterbyrne/npm,DIREKTSPEED-LTD/npm,TimeToogo/npm,cchamberlain/npm-msys2,lxe/npm