Remove !has_transactional_callbacks? check
Remove !has_transactional_callbacks? check

We only set the state on the record if that condition is `false` in the
first place, so we dont need to call that again. Also that call is
expensive, follow benchmark with before and after this change:

```
Calculating -------------------------------------
          persisted?    15.272k i/100ms
	  -------------------------------------------------
          persisted?    350.119k (± 4.6%) i/s -      1.756M
```

```
Calculating -------------------------------------
          persisted?    25.988k i/100ms
	  -------------------------------------------------
          persisted?      1.294M (± 5.3%) i/s -      6.445M
```

(benchmark borrowed from 57d35b2bf9e48173a5f97ccff5e6897f0c46411f)

koic/rails,88rabbit/newRails,ledestin/rails,pschambacher/rails,lcreid/rails,mtsmfm/rails,lcreid/rails,matrinox/rails,Envek/rails,bogdanvlviv/rails,mtsmfm/railstest,printercu/rails,marklocklear/rails,mtsmfm/railstest,hanystudy/rails,amoody2108/TechForJustice,gcourtemanche/rails,untidy-hair/rails,shioyama/rails,bolek/rails,palkan/rails,sergey-alekseev/rails,rafaelfranca/omg-rails,yalab/rails,matrinox/rails,eileencodes/rails,vassilevsky/rails,flanger001/rails,elfassy/rails,assain/rails,repinel/rails,vipulnsward/rails,riseshia/railsguides.kr,xlymian/rails,betesh/rails,repinel/rails,alecspopa/rails,pvalena/rails,gfvcastro/rails,bogdanvlviv/rails,assain/rails,kamipo/rails,gavingmiller/rails,Edouard-chin/rails,joonyou/rails,odedniv/rails,georgeclaghorn/rails,eileencodes/rails,jeremy/rails,kmcphillips/rails,fabianoleittes/rails,lcreid/rails,yasslab/railsguides.jp,stefanmb/rails,Vasfed/rails,betesh/rails,repinel/rails,tijwelch/rails,kamipo/rails,repinel/rails,baerjam/rails,richseviora/rails,notapatch/rails,travisofthenorth/rails,gauravtiwari/rails,jeremy/rails,pvalena/rails,aditya-kapoor/rails,georgeclaghorn/rails,travisofthenorth/rails,elfassy/rails,mathieujobin/reduced-rails-for-travis,hanystudy/rails,starknx/rails,rbhitchcock/rails,kirs/rails-1,Spin42/rails,tgxworld/rails,ngpestelos/rails,vipulnsward/rails,yalab/rails,shioyama/rails,arunagw/rails,coreyward/rails,untidy-hair/rails,Erol/rails,kddeisz/rails,travisofthenorth/rails,kmcphillips/rails,esparta/rails,gfvcastro/rails,88rabbit/newRails,gcourtemanche/rails,yhirano55/rails,ledestin/rails,Erol/rails,Sen-Zhang/rails,mijoharas/rails,kmcphillips/rails,illacceptanything/illacceptanything,Erol/rails,Envek/rails,MSP-Greg/rails,rails/rails,tjschuck/rails,jeremy/rails,amoody2108/TechForJustice,Spin42/rails,rossta/rails,lucasmazza/rails,iainbeeston/rails,elfassy/rails,ttanimichi/rails,brchristian/rails,Edouard-chin/rails,vipulnsward/rails,utilum/rails,kachick/rails,iainbeeston/rails,eileencodes/rails,georgeclaghorn/rails,esparta/rails,starknx/rails,gfvcastro/rails,deraru/rails,Stellenticket/rails,betesh/rails,mtsmfm/rails,mechanicles/rails,yahonda/rails,schuetzm/rails,arunagw/rails,tjschuck/rails,gauravtiwari/rails,marklocklear/rails,Edouard-chin/rails,bogdanvlviv/rails,deraru/rails,kenta-s/rails,mathieujobin/reduced-rails-for-travis,sergey-alekseev/rails,kmcphillips/rails,kaspth/rails,hanystudy/rails,Vasfed/rails,lucasmazza/rails,maicher/rails,kachick/rails,samphilipd/rails,Stellenticket/rails,BlakeWilliams/rails,deraru/rails,pschambacher/rails,utilum/rails,illacceptanything/illacceptanything,joonyou/rails,kddeisz/rails,kmayer/rails,sealocal/rails,gfvcastro/rails,Sen-Zhang/rails,rails/rails,mtsmfm/rails,felipecvo/rails,MichaelSp/rails,vipulnsward/rails,sealocal/rails,rails/rails,arunagw/rails,felipecvo/rails,prathamesh-sonpatki/rails,bolek/rails,ttanimichi/rails,travisofthenorth/rails,kirs/rails-1,shioyama/rails,notapatch/rails,mohitnatoo/rails,EmmaB/rails-1,yhirano55/rails,rafaelfranca/omg-rails,tijwelch/rails,starknx/rails,aditya-kapoor/rails,voray/rails,tjschuck/rails,deraru/rails,baerjam/rails,yawboakye/rails,mechanicles/rails,mtsmfm/railstest,voray/rails,kamipo/rails,koic/rails,mohitnatoo/rails,illacceptanything/illacceptanything,palkan/rails,Envek/rails,kmayer/rails,flanger001/rails,illacceptanything/illacceptanything,vassilevsky/rails,betesh/rails,samphilipd/rails,yahonda/rails,marklocklear/rails,iainbeeston/rails,flanger001/rails,Stellenticket/rails,brchristian/rails,stefanmb/rails,amoody2108/TechForJustice,odedniv/rails,rails/rails,esparta/rails,yahonda/rails,xlymian/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,sergey-alekseev/rails,yalab/rails,matrinox/rails,gauravtiwari/rails,lucasmazza/rails,richseviora/rails,bradleypriest/rails,MSP-Greg/rails,mijoharas/rails,gcourtemanche/rails,fabianoleittes/rails,coreyward/rails,yahonda/rails,yawboakye/rails,mohitnatoo/rails,aditya-kapoor/rails,mijoharas/rails,EmmaB/rails-1,bolek/rails,kaspth/rails,rbhitchcock/rails,88rabbit/newRails,Edouard-chin/rails,notapatch/rails,Stellenticket/rails,rbhitchcock/rails,jeremy/rails,untidy-hair/rails,voray/rails,riseshia/railsguides.kr,alecspopa/rails,iainbeeston/rails,schuetzm/rails,tgxworld/rails,illacceptanything/illacceptanything,richseviora/rails,tgxworld/rails,notapatch/rails,Sen-Zhang/rails,prathamesh-sonpatki/rails,illacceptanything/illacceptanything,schuetzm/rails,flanger001/rails,BlakeWilliams/rails,rafaelfranca/omg-rails,maicher/rails,pvalena/rails,yasslab/railsguides.jp,Erol/rails,mathieujobin/reduced-rails-for-travis,aditya-kapoor/rails,arjes/rails,fabianoleittes/rails,palkan/rails,alecspopa/rails,yasslab/railsguides.jp,tgxworld/rails,illacceptanything/illacceptanything,MichaelSp/rails,rossta/rails,illacceptanything/illacceptanything,baerjam/rails,pvalena/rails,lcreid/rails,arunagw/rails,joonyou/rails,bradleypriest/rails,Vasfed/rails,brchristian/rails,assain/rails,ttanimichi/rails,BlakeWilliams/rails,printercu/rails,vassilevsky/rails,shioyama/rails,kenta-s/rails,felipecvo/rails,baerjam/rails,MichaelSp/rails,xlymian/rails,ngpestelos/rails,Vasfed/rails,tijwelch/rails,yhirano55/rails,utilum/rails,Envek/rails,mohitnatoo/rails,bogdanvlviv/rails,BlakeWilliams/rails,kddeisz/rails,yawboakye/rails,fabianoleittes/rails,joonyou/rails,georgeclaghorn/rails,bradleypriest/rails,prathamesh-sonpatki/rails,coreyward/rails,esparta/rails,EmmaB/rails-1,Spin42/rails,untidy-hair/rails,kirs/rails-1,arjes/rails,ngpestelos/rails,yasslab/railsguides.jp,riseshia/railsguides.kr,koic/rails,samphilipd/rails,stefanmb/rails,kaspth/rails,odedniv/rails,MSP-Greg/rails,printercu/rails,illacceptanything/illacceptanything,maicher/rails,printercu/rails,gavingmiller/rails,ledestin/rails,sealocal/rails,tjschuck/rails,assain/rails,yalab/rails,utilum/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,illacceptanything/illacceptanything,kachick/rails,kenta-s/rails,rossta/rails,palkan/rails,gavingmiller/rails,kddeisz/rails,mechanicles/rails,MSP-Greg/rails,schuetzm/rails,illacceptanything/illacceptanything,riseshia/railsguides.kr,yawboakye/rails,eileencodes/rails,pschambacher/rails,kmayer/rails,yhirano55/rails,prathamesh-sonpatki/rails,mechanicles/rails,arjes/rails