Remove unsupported methods from version 1
Remove unsupported methods from version 1

After so long time of rewrite/core release it is no longer needed
to raise NotImplementedError. Raising AttributeError will do the job
too.

Change-Id: Iecb5f60b152c5cd4ed23ce6862da789707616b44

VcamX/pywikibot-core,jayvdb/pywikibot-core,emijrp/pywikibot-core,xZise/pywikibot-core,hasteur/g13bot_tools_new,valhallasw/pywikibot-core,npdoty/pywikibot,Darkdadaah/pywikibot-core,h4ck3rm1k3/pywikibot-core,icyflame/batman,smalyshev/pywikibot-core,wikimedia/pywikibot-core,magul/pywikibot-core,hasteur/g13bot_tools_new,PersianWikipedia/pywikibot-core,magul/pywikibot-core,jayvdb/pywikibot-core,happy5214/pywikibot-core,happy5214/pywikibot-core,h4ck3rm1k3/pywikibot-core,Darkdadaah/pywikibot-core,hasteur/g13bot_tools_new,wikimedia/pywikibot-core,darthbhyrava/pywikibot-local,npdoty/pywikibot,TridevGuha/pywikibot-core,trishnaguha/pywikibot-core