Revert "first implementation of fullcalendar plugin with old buttons working"
Revert "first implementation of fullcalendar plugin with old buttons working"

This reverts commit b40122832fdc3ebac05ca46e941f1c20698f1d06.

andreas-p/nextcloud-server,pollopolea/core,whitekiba/server,cernbox/core,lrytz/core,andreas-p/nextcloud-server,nextcloud/server,cernbox/core,cernbox/core,pollopolea/core,Ardinis/server,whitekiba/server,endsguy/server,nextcloud/server,pmattern/server,xx621998xx/server,pixelipo/server,IljaN/core,michaelletzgus/nextcloud-server,lrytz/core,nextcloud/server,endsguy/server,andreas-p/nextcloud-server,jbicha/server,bluelml/core,pollopolea/core,lrytz/core,cernbox/core,jbicha/server,jbicha/server,owncloud/core,lrytz/core,IljaN/core,endsguy/server,jbicha/server,michaelletzgus/nextcloud-server,IljaN/core,jbicha/server,pmattern/server,endsguy/server,sharidas/core,Ardinis/server,sharidas/core,whitekiba/server,owncloud/core,xx621998xx/server,pixelipo/server,michaelletzgus/nextcloud-server,xx621998xx/server,owncloud/core,bluelml/core,Ardinis/server,endsguy/server,pixelipo/server,cernbox/core,bluelml/core,bluelml/core,owncloud/core,lrytz/core,whitekiba/server,pmattern/server,andreas-p/nextcloud-server,bluelml/core,Ardinis/server,pixelipo/server,phil-davis/core,michaelletzgus/nextcloud-server,pixelipo/server,pmattern/server,xx621998xx/server,pollopolea/core,pmattern/server,sharidas/core,Ardinis/server,xx621998xx/server,pollopolea/core,andreas-p/nextcloud-server,IljaN/core,whitekiba/server,IljaN/core,sharidas/core,nextcloud/server,sharidas/core,owncloud/core