The heat drew the retirees and teenagers out of the apartment towers that line Second Avenue near 106th Street in East Harlem and onto the shaded benches in a courtyard below. It’s a bit of respite that sits just feet from where, for two decades, the Metropolitan Transportation Authority has promised to build a new subway station as part of a subway expansion that’s been promised on and off for 80 years. The now “indefinitely paused” congestion toll was supposed to provide the local portion of the funding — which the MTA says means the $6.6 billion, three-stop expansion is now paused, too.