remove "Please switch to Display 1 first", which is temp used, don't

bother contributors translate it

src/lang/sl.rs

@@ -301,7 +301,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Succeeded", "Uspelo"),
         ("Someone turns on privacy mode, exit", "Vklopljen je zasebni način, izhod"),
         ("Unsupported", "Ni podprto"),
-        ("Please switch to Display 1 first", ""),
         ("Peer denied", "Odjemalec zavrnil"),
         ("Please install plugins", "Namestite vključke"),
         ("Peer exit", "Odjemalec se je zaprl"),