Subway Didn't Pull Russ' Sandwich Over Trolling ... We Swear!!!

No, Subway did not pull Russell Wilson's signature sub from its menu over hate from online trolls ... the sandwich giant tells TMZ Sports it simply needed some space for newer dishes.

The Russ hoagie -- dubbed the "The Dangerwich" -- debuted on Subway's exclusive "The Vault" menu back in February ... and it seemed to initially be a hit.

There didn't appear to be any problems with the sammy -- which featured pepperoni, salami, ham, cheese, bacon and veggies -- but when the org. began releasing some ads with the Broncos QB in them, that's when the backlash began.

Russ looked super cringeworthy in the spots -- including one where he, decked out in sunglasses and a leather jacket, suggested a way…