When you don't need the lock screen password, you can turn off the lock screen password by the following methods.
Setting method:
realme UI 6.0 & 5.0: Settings > Security & privacy > Device unlock > Screen lock > Enter lock screen password > Turn off password > Enter lock screen password
realme UI 4.0 & 3.0: Settings > Security & privacy > Lock screen password > Enter lock screen password > Turn off password > Enter lock screen password
realme UI 1.0 & 2.0: Settings > Fingerprint, face & password > Lock screen password > Enter lock screen password > Turn off password > Enter lock screen password
realme UI R & T & S & Go & U Edition: Settings > search "Screen lock" in the search bar >Enter Password > Turn off password