If you have taken TOEFL then you do not need to take any other test. I used my TOEFL score from 1996 when I applied for Canadian PR in 2003. In addition to my TOEFL score, I also sent in some other class projects from school, my GMAT score from 1996 and a letter explaining why I think I do not need to take the IELTS to prove my proficiency in English. The Canadian Consulate did not even call me for the interview.