The former West Ham and Newcastle manager joined the Owls in April following Chansiri's acquisition of the club and formed part of a three-man sporting committee along with Adam Pearson and Stuart Gray.
Following Pearson's defection to Leeds and Gray's sacking in the summer, Roeder was the last man standing until Chansiri decided he did not need him any more.
On a statement on Wednesday's official website Chansiri said: "I have enjoyed working with Glenn and his football knowledge has been extremely helpful.
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"As I have stated previously, I will continue to make the difficult decisions in the best interest of the club. The committee will continue to evolve, I therefore need to ensure it is populated with the best mix of expert advisors available to me which will result in periodical changes in personnel as the club progresses.
"I am confident that along with my network of trusted advisors the committee will continue to build on the success I believe we have already achieved as we approach the January transfer window."
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