A pre-dawn fire on Wednesday hit a landmark building on Patchin Place in Greenwich Village, one of the neighborhood’s quietest — and most storied — corners. The early-morning blaze broke out at 4 Patchin Place, a mid-19th-century townhouse once home to poet E. E. Cummings. The site is part of a broader renovation project, according to a complaint report filed by the Department of Buildings and obtained by The Post.