By Ron Bousso LONDON (Reuters) – Shell said on Thursday it had suspended plans to sell its onshore oil assets in Nigeria, complying with a Supreme Court ruling that said it had to wait for the outcome of an appeal over a 2019 oil spill. “Shell welcomes the Nigerian Supreme Court’s decision to hear the appeal of the Shell Petroleum Development Company of Nigeria Ltd (SPDC) in this case,” the London-based company said in a statement. “Until the outcome of SPDC’s appeal, Shell will not progress the divestment of its interest in SPDC.” Nigeria’s Supreme Court on June 16 upheld a lower court ruling…