Iraq’s parliament on Monday indefinitely postponed a scheduled vote for the republic’s president after most major political blocs boycotted the session. The sweeping no-show deepens a political crisis in the war-scarred country which, almost four months after a general election, still hasn’t chosen a new prime minister. The assembly vote had been set for noon for the head of state — a post with a four-year mandate held by convention by a member of Iraq’s Kurdish minority, and currently occupied by Barham Saleh. But a series of boycott calls had made it highly unlikely the 329-seat parliament …