The reason the Turret Interface icon (from the offending mod) is showing is because it targets all entities with the prototype ammo-turret which included the Portable Turret. Since this is all done in the code for Logistic Gun Turret there isn't much that I can do on my end.
If you do not mind modifying a single line of code in the Logistic Gun Turret mod, you can add my entity to the blacklist:
To do so, open the consts.lua file inside of the LGT mod folder. At the bottom there is a table called consts.blacklist. Here you should add the entity mini-turret-ent to the blacklist. This line will look something along the likes of
["mini-turret-ent"] = true