Fixup `Task.invalidated` UI.
Fixup `Task.invalidated` UI.

This has been broken since the introduction of `Payload`.  Kill
the "...containing file" UI.

Testing Done:
CI went green here:
  https://travis-ci.org/pantsbuild/pants/builds/50563847

Bugs closed: 1091

Reviewed at https://rbcommons.com/s/twitter/r/1758/

kslundberg/pants,dgomez10/xanon,laurentgo/pants,Gabriel439/pants,peiyuwang/pants,pombredanne/pants,dturner-tw/pants,pgroudas/pants,mateor/pants,digwanderlust/pants,lahosken/pants,sid-kap/pants,twitter/pants,dgomez10/xanon,megaserg/pants,15Dkatz/pants,Gabriel439/pants,fkorotkov/pants,pantsbuild/pants,areitz/pants,scode/pants,megaserg/pants,cevaris/pants,laurentgo/pants,ericzundel/pants,sameerparekh/pants,mateor/pants,dgomez10/xanon,benjyw/pants,scode/pants,baroquebobcat/pants,pgroudas/pants,tdyas/pants,twitter/pants,dturner-tw/pants,sid-kap/pants,kslundberg/pants,jsirois/pants,pombredanne/pants,areitz/pants,dgomez10/xanon,jessrosenfield/pants,dbentley/pants,jessrosenfield/pants,cevaris/pants,landism/pants,digwanderlust/pants,foursquare/pants,dturner-tw/pants,mateor/pants,dbentley/pants,peiyuwang/pants,fkorotkov/pants,pantsbuild/pants,manasapte/pants,tdyas/pants,ericzundel/pants,cevaris/pants,dbentley/pants,landism/pants,kslundberg/pants,scode/pants,ity/pants,fkorotkov/pants,baroquebobcat/pants,sameerparekh/pants,ity/pants,UnrememberMe/pants,gmalmquist/pants,scode/pants,fkorotkov/pants,manasapte/pants,benjyw/pants,wisechengyi/pants,tdyas/pants,dbentley/pants,kwlzn/pants,dbentley/pants,twitter/pants,slyphon/pants,foursquare/pants,Gabriel439/pants,tdyas/pants,lahosken/pants,TansyArron/pants,TansyArron/pants,ericzundel/pants,twitter/pants,TansyArron/pants,foursquare/pants,foursquare/pants,sameerparekh/pants,jtrobec/pants,dturner-tw/pants,UnrememberMe/pants,ericzundel/pants,sameerparekh/pants,scode/pants,pgroudas/pants,manasapte/pants,benjyw/pants,foursquare/pants,Gabriel439/pants,jtrobec/pants,ericzundel/pants,sid-kap/pants,gmalmquist/pants,mateor/pants,qma/pants,landism/pants,qma/pants,ity/pants,peiyuwang/pants,kwlzn/pants,wisechengyi/pants,dbentley/pants,cevaris/pants,pantsbuild/pants,megaserg/pants,dgomez10/xanon,areitz/pants,jsirois/pants,pantsbuild/pants,pombredanne/pants,ericzundel/pants,pombredanne/pants,tdyas/pants,jsirois/pants,sameerparekh/pants,pombredanne/pants,di0spyr0s/pants,tejal29/pants,areitz/pants,foursquare/pants,landism/pants,gmalmquist/pants,jessrosenfield/pants,di0spyr0s/pants,dgomez10/xanon,UnrememberMe/pants,dturner-tw/pants,qma/pants,tejal29/pants,dgomez10/xanon,Gabriel439/pants,kslundberg/pants,ity/pants,megaserg/pants,jessrosenfield/pants,TansyArron/pants,jtrobec/pants,twitter/pants,sid-kap/pants,manasapte/pants,baroquebobcat/pants,UnrememberMe/pants,15Dkatz/pants,pantsbuild/pants,di0spyr0s/pants,gmalmquist/pants,kslundberg/pants,tdyas/pants,ity/pants,peiyuwang/pants,fkorotkov/pants,qma/pants,lahosken/pants,laurentgo/pants,dgomez10/xanon,jtrobec/pants,sameerparekh/pants,dbentley/pants,laurentgo/pants,megaserg/pants,tdyas/pants,twitter/pants,foursquare/pants,lahosken/pants,laurentgo/pants,tejal29/pants,peiyuwang/pants,dgomez10/xanon,baroquebobcat/pants,lahosken/pants,TansyArron/pants,wisechengyi/pants,peiyuwang/pants,cevaris/pants,benjyw/pants,landism/pants,jessrosenfield/pants,benjyw/pants,slyphon/pants,qma/pants,mateor/pants,benjyw/pants,mateor/pants,cevaris/pants,ericzundel/pants,pantsbuild/pants,tdyas/pants,gmalmquist/pants,wisechengyi/pants,areitz/pants,pombredanne/pants,digwanderlust/pants,peiyuwang/pants,jtrobec/pants,dgomez10/xanon,kslundberg/pants,ity/pants,wisechengyi/pants,pantsbuild/pants,wisechengyi/pants,kwlzn/pants,wisechengyi/pants,pombredanne/pants,ity/pants,landism/pants,jessrosenfield/pants,landism/pants,UnrememberMe/pants,baroquebobcat/pants,qma/pants,areitz/pants,15Dkatz/pants,digwanderlust/pants,digwanderlust/pants,megaserg/pants,fkorotkov/pants,tejal29/pants,baroquebobcat/pants,UnrememberMe/pants,dturner-tw/pants,15Dkatz/pants,foursquare/pants,slyphon/pants,UnrememberMe/pants,cevaris/pants,TansyArron/pants,Gabriel439/pants,di0spyr0s/pants,sid-kap/pants,qma/pants,pgroudas/pants,kwlzn/pants,fkorotkov/pants,gmalmquist/pants,benjyw/pants,kwlzn/pants,15Dkatz/pants,tdyas/pants,kwlzn/pants,twitter/pants,dturner-tw/pants,TansyArron/pants,lahosken/pants,wisechengyi/pants,sid-kap/pants,slyphon/pants,dgomez10/xanon,baroquebobcat/pants,kwlzn/pants,lahosken/pants,landism/pants,di0spyr0s/pants,pgroudas/pants,mateor/pants,baroquebobcat/pants,twitter/pants,kslundberg/pants,fkorotkov/pants,sameerparekh/pants,pgroudas/pants,15Dkatz/pants,manasapte/pants,twitter/pants,lahosken/pants,scode/pants,scode/pants,areitz/pants,slyphon/pants,UnrememberMe/pants,UnrememberMe/pants,manasapte/pants,wisechengyi/pants,slyphon/pants,sid-kap/pants,di0spyr0s/pants,di0spyr0s/pants,15Dkatz/pants,baroquebobcat/pants,foursquare/pants,tejal29/pants,peiyuwang/pants,jessrosenfield/pants,slyphon/pants,15Dkatz/pants,ericzundel/pants,jtrobec/pants,manasapte/pants,digwanderlust/pants,mateor/pants,gmalmquist/pants,laurentgo/pants,Gabriel439/pants,megaserg/pants,jtrobec/pants