Revert "Add operator as a reserved word"
Revert "Add operator as a reserved word"

Summary:
This reverts commit 8593ecd7f353d761648b4dd0c1ed1373ffb4d12f.

Said rev introduced a change that blacklisted an operator in thrift
(which is a reserved word in C) without making any attempt to fix the
existing variable names that are unaffected due to the lack of C
clients.

Test Plan:
Things less broken than before.
fbconfig -r dappertwo && fbmake runtests

Reviewed By: haijunz@fb.com

Subscribers: alandau

FB internal diff: D1490557

project-zerus/fbthrift,HankFaan/fbthrift,kangkot/fbthrift,kangkot/fbthrift,fengshao0907/fbthrift,jesboat/fbthrift,facebook/fbthrift,chjp2046/fbthrift,Orvid/fbthrift,soumith/fbthrift,getyourguide/fbthrift,LinusU/fbthrift,SergeyMakarenko/fbthrift,guker/fbthrift,HankFaan/fbthrift,maxwell-demon/fbthrift,getyourguide/fbthrift,raphaelamorim/fbthrift,SergeyMakarenko/fbthrift,facebook/fbthrift,project-zerus/fbthrift,getyourguide/fbthrift,fengshao0907/fbthrift,facebook/fbthrift,Orvid/fbthrift,kangkot/fbthrift,SergeyMakarenko/fbthrift,raphaelamorim/fbthrift,kangkot/fbthrift,maxwell-demon/fbthrift,kangkot/fbthrift,LinusU/fbthrift,guker/fbthrift,SergeyMakarenko/fbthrift,SergeyMakarenko/fbthrift,LinusU/fbthrift,kangkot/fbthrift,kangkot/fbthrift,sinjar666/fbthrift,jesboat/fbthrift,fengshao0907/fbthrift,getyourguide/fbthrift,HankFaan/fbthrift,guker/fbthrift,sinjar666/fbthrift,SergeyMakarenko/fbthrift,chjp2046/fbthrift,chjp2046/fbthrift,jesboat/fbthrift,getyourguide/fbthrift,SergeyMakarenko/fbthrift,guker/fbthrift,getyourguide/fbthrift,HankFaan/fbthrift,Orvid/fbthrift,uber/fbthrift,guker/fbthrift,HankFaan/fbthrift,chjp2046/fbthrift,facebook/fbthrift,chjp2046/fbthrift,HankFaan/fbthrift,chjp2046/fbthrift,raphaelamorim/fbthrift,chjp2046/fbthrift,uber/fbthrift,LinusU/fbthrift,SergeyMakarenko/fbthrift,getyourguide/fbthrift,maxwell-demon/fbthrift,Orvid/fbthrift,uber/fbthrift,jesboat/fbthrift,maxwell-demon/fbthrift,raphaelamorim/fbthrift,maxwell-demon/fbthrift,sinjar666/fbthrift,uber/fbthrift,getyourguide/fbthrift,soumith/fbthrift,guker/fbthrift,soumith/fbthrift,sinjar666/fbthrift,facebook/fbthrift,raphaelamorim/fbthrift,maxwell-demon/fbthrift,getyourguide/fbthrift,project-zerus/fbthrift,uber/fbthrift,HankFaan/fbthrift,HankFaan/fbthrift,Orvid/fbthrift,project-zerus/fbthrift,LinusU/fbthrift,jesboat/fbthrift,chjp2046/fbthrift,sinjar666/fbthrift,soumith/fbthrift,facebook/fbthrift,uber/fbthrift,fengshao0907/fbthrift,kangkot/fbthrift,LinusU/fbthrift,facebook/fbthrift,LinusU/fbthrift,chjp2046/fbthrift,fengshao0907/fbthrift,kangkot/fbthrift,fengshao0907/fbthrift,raphaelamorim/fbthrift,uber/fbthrift,LinusU/fbthrift,project-zerus/fbthrift,soumith/fbthrift,soumith/fbthrift,project-zerus/fbthrift,SergeyMakarenko/fbthrift,sinjar666/fbthrift,uber/fbthrift,project-zerus/fbthrift,jesboat/fbthrift,Orvid/fbthrift,SergeyMakarenko/fbthrift,sinjar666/fbthrift,LinusU/fbthrift,getyourguide/fbthrift,sinjar666/fbthrift,HankFaan/fbthrift,soumith/fbthrift,Orvid/fbthrift,facebook/fbthrift,maxwell-demon/fbthrift,soumith/fbthrift,Orvid/fbthrift,maxwell-demon/fbthrift,kangkot/fbthrift,guker/fbthrift,guker/fbthrift,raphaelamorim/fbthrift,soumith/fbthrift,jesboat/fbthrift,jesboat/fbthrift,sinjar666/fbthrift,getyourguide/fbthrift,jesboat/fbthrift,fengshao0907/fbthrift,HankFaan/fbthrift,chjp2046/fbthrift,facebook/fbthrift,jesboat/fbthrift,fengshao0907/fbthrift,uber/fbthrift,Orvid/fbthrift,uber/fbthrift,project-zerus/fbthrift,raphaelamorim/fbthrift,fengshao0907/fbthrift,maxwell-demon/fbthrift,jesboat/fbthrift,soumith/fbthrift,raphaelamorim/fbthrift,SergeyMakarenko/fbthrift,raphaelamorim/fbthrift,Orvid/fbthrift,guker/fbthrift,Orvid/fbthrift,LinusU/fbthrift,maxwell-demon/fbthrift,guker/fbthrift,chjp2046/fbthrift,maxwell-demon/fbthrift,fengshao0907/fbthrift,project-zerus/fbthrift,kangkot/fbthrift,HankFaan/fbthrift,raphaelamorim/fbthrift,chjp2046/fbthrift,soumith/fbthrift,sinjar666/fbthrift,LinusU/fbthrift,project-zerus/fbthrift,project-zerus/fbthrift,jesboat/fbthrift,guker/fbthrift,uber/fbthrift,fengshao0907/fbthrift,uber/fbthrift,sinjar666/fbthrift,SergeyMakarenko/fbthrift,project-zerus/fbthrift,getyourguide/fbthrift