Ok, this is going way off topic, but this is inconsistent with what I've read and with what's in the game. My info is they scrapped SGRA before launch in fear of backlashes. Whatever. Back on topic now.
Audio was recorded for SGRs for both Ash and Kaidan for ME. The romances were scrapped, but the files remained as part of the ME installation. Ditto for Miranda in ME2 and some FemShep lines regarding Tali in ME3.
I doubt they would have been included in the data that shipped, let alone recorded, had they not been in use at some point.