Revert "Merge pull request #33385 from lanzhiheng/add-example-for-has-and-belongs-to-many-association"
Revert "Merge pull request #33385 from lanzhiheng/add-example-for-has-and-belongs-to-many-association"

This reverts commit 3c8c410012e34709f3fdfe5b6a571353b20d0c56, reversing
changes made to daee94da99605d89854660b63d98e4c1dc9a979d.

We have this information below in the reference section for
has_and_belongs_to_many.

aditya-kapoor/rails,yahonda/rails,esparta/rails,rails/rails,prathamesh-sonpatki/rails,printercu/rails,rails/rails,yhirano55/rails,yawboakye/rails,joonyou/rails,repinel/rails,EmmaB/rails-1,iainbeeston/rails,jeremy/rails,iainbeeston/rails,illacceptanything/illacceptanything,fabianoleittes/rails,yalab/rails,EmmaB/rails-1,flanger001/rails,georgeclaghorn/rails,yahonda/rails,rafaelfranca/omg-rails,Erol/rails,Edouard-chin/rails,tgxworld/rails,MSP-Greg/rails,georgeclaghorn/rails,illacceptanything/illacceptanything,arunagw/rails,kddeisz/rails,georgeclaghorn/rails,schuetzm/rails,mechanicles/rails,BlakeWilliams/rails,gauravtiwari/rails,illacceptanything/illacceptanything,fabianoleittes/rails,yalab/rails,vipulnsward/rails,deraru/rails,shioyama/rails,arunagw/rails,illacceptanything/illacceptanything,kmcphillips/rails,illacceptanything/illacceptanything,yhirano55/rails,illacceptanything/illacceptanything,tjschuck/rails,eileencodes/rails,vipulnsward/rails,flanger001/rails,MSP-Greg/rails,Stellenticket/rails,repinel/rails,repinel/rails,bogdanvlviv/rails,vipulnsward/rails,esparta/rails,Edouard-chin/rails,aditya-kapoor/rails,gauravtiwari/rails,BlakeWilliams/rails,kddeisz/rails,utilum/rails,jeremy/rails,tjschuck/rails,rafaelfranca/omg-rails,jeremy/rails,betesh/rails,palkan/rails,prathamesh-sonpatki/rails,Vasfed/rails,yawboakye/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,tgxworld/rails,flanger001/rails,Edouard-chin/rails,Erol/rails,lcreid/rails,Envek/rails,mohitnatoo/rails,joonyou/rails,yhirano55/rails,Vasfed/rails,lcreid/rails,kmcphillips/rails,aditya-kapoor/rails,tgxworld/rails,jeremy/rails,utilum/rails,Envek/rails,schuetzm/rails,baerjam/rails,mohitnatoo/rails,palkan/rails,iainbeeston/rails,illacceptanything/illacceptanything,notapatch/rails,rails/rails,utilum/rails,yahonda/rails,palkan/rails,utilum/rails,palkan/rails,fabianoleittes/rails,betesh/rails,flanger001/rails,Envek/rails,schuetzm/rails,joonyou/rails,rafaelfranca/omg-rails,Vasfed/rails,mechanicles/rails,shioyama/rails,mohitnatoo/rails,illacceptanything/illacceptanything,tjschuck/rails,printercu/rails,yawboakye/rails,printercu/rails,baerjam/rails,notapatch/rails,kddeisz/rails,kddeisz/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,starknx/rails,esparta/rails,mohitnatoo/rails,rails/rails,bogdanvlviv/rails,notapatch/rails,starknx/rails,illacceptanything/illacceptanything,lcreid/rails,MSP-Greg/rails,arunagw/rails,starknx/rails,deraru/rails,yalab/rails,Envek/rails,tjschuck/rails,betesh/rails,mechanicles/rails,yalab/rails,illacceptanything/illacceptanything,Erol/rails,iainbeeston/rails,betesh/rails,Stellenticket/rails,georgeclaghorn/rails,joonyou/rails,lcreid/rails,deraru/rails,EmmaB/rails-1,baerjam/rails,Edouard-chin/rails,kmcphillips/rails,tgxworld/rails,gauravtiwari/rails,esparta/rails,baerjam/rails,printercu/rails,bogdanvlviv/rails,eileencodes/rails,shioyama/rails,Erol/rails,illacceptanything/illacceptanything,aditya-kapoor/rails,kmcphillips/rails,BlakeWilliams/rails,Vasfed/rails,MSP-Greg/rails,prathamesh-sonpatki/rails,eileencodes/rails,prathamesh-sonpatki/rails,arunagw/rails,fabianoleittes/rails,BlakeWilliams/rails,Stellenticket/rails,bogdanvlviv/rails,vipulnsward/rails,yhirano55/rails,yahonda/rails,schuetzm/rails,notapatch/rails,repinel/rails,deraru/rails,yawboakye/rails,mechanicles/rails,Stellenticket/rails,shioyama/rails,eileencodes/rails