I think it did (it would have been known as a "support coil" - also often seen in suction lines for fluid power,) but as long as you keep your hoses fairly new, it presents less of a problem than you'd think.
Also, those support coils can be re-used once or twice - when I change out hoses, if the new hose has a coil in it, I'll remove the old one, clean it up, and tag it as a spare. Comes in handy...
If you just aren't comfortable without the thing in place, you can check around fluid power suppliers - they usually carry them in "suction sizes" (1-1/2" and up,) and theirs are wound from CRES flat stock, so they'll hold up better anyhow. Buy a length - then cut, deburr, and wind into the hose.