Remove jedi installation hack in setup.py.
Remove jedi installation hack in setup.py.

MattOates/pgcli,janusnic/pgcli,dbcli/vcli,bitmonk/pgcli,d33tah/pgcli,yx91490/pgcli,n-someya/pgcli,MattOates/pgcli,n-someya/pgcli,johshoff/pgcli,suzukaze/pgcli,nosun/pgcli,TamasNo1/pgcli,dbcli/pgcli,TamasNo1/pgcli,zhiyuanshi/pgcli,joewalnes/pgcli,thedrow/pgcli,koljonen/pgcli,suzukaze/pgcli,w4ngyi/pgcli,koljonen/pgcli,bitemyapp/pgcli,j-bennet/pgcli,nosun/pgcli,w4ngyi/pgcli,thedrow/pgcli,lk1ngaa7/pgcli,dbcli/vcli,d33tah/pgcli,j-bennet/pgcli,darikg/pgcli,johshoff/pgcli,darikg/pgcli,zhiyuanshi/pgcli,bitemyapp/pgcli,joewalnes/pgcli,dbcli/pgcli,yx91490/pgcli,lk1ngaa7/pgcli,bitmonk/pgcli,janusnic/pgcli