Revert "Auto-generate nicknames for invitees joining via link"

This reverts commit 32e4e61635.

game/store.go

@@ -50,24 +50,6 @@ func GenerateID(size int) string {
 	return hex.EncodeToString(b)
 }
 
-func GenerateNickname() string {
-	adjectives := []string{
-		"Swift", "Happy", "Clever", "Brave", "Mighty",
-		"Quick", "Calm", "Bold", "Lucky", "Wise",
-		"Eager", "Noble", "Keen", "Bright", "Vivid",
-	}
-	nouns := []string{
-		"Tiger", "Falcon", "Dragon", "Phoenix", "Wolf",
-		"Eagle", "Panda", "Otter", "Fox", "Bear",
-		"Hawk", "Lion", "Raven", "Shark", "Owl",
-	}
-	b := make([]byte, 2)
-	rand.Read(b)
-	adj := adjectives[int(b[0])%len(adjectives)]
-	noun := nouns[int(b[1])%len(nouns)]
-	return adj + " " + noun
-}
-
 type GameInstance struct {
 	game      *Game
 	gameMu    sync.RWMutex