Rod Stewart is canceling the remaining month of his farewell tour dates, which includes his upcoming Las Vegas residency, after the rock star underwent a coronary stent procedure, his representatives confirmed on Tuesday. “Following further medical evaluation, Sir Rod Stewart has successfully undergone a routine coronary stent procedure,” Stewart said in a post shared on Instagram on Tuesday. “Doctors are pleased with his recovery, and Rod is doing very well and has returned to his normal daily activities. On the advice of his doctors, he will take the next four weeks to recuperate and regain full fitness before returning to the stage….