ISLAMABAD (Reuters) -Pakistan’s Supreme Court on Monday scrapped lifetime bans on contesting elections for people with criminal convictions, paving the way for Nawaz Sharif to run for prime minister for a fourth time. Sharif’s party, Pakistan Muslim League-Nawaz (PML-N), is considered a front runner to win elections scheduled for Feb. 8, with Sharif’s main rival, former prime minister Imran Khan, in jail and barred from contesting for five years. In his ruling, Chief Justice Qazi Faez Isa, who headed a seven-member panel of judges, said the life bans “abridge the fundamental right of citizens …