Unnecessary composer encryption state for public (rooms)

### Your use case

#### What would you like to do?

For some reason for IOS and Android both thought it was good idea to give unnecessary information on composer about encryption state in public room which is like that by intention

We already had that in room profile information and it was enough.
Annoying and making it bigger on android just for more unneccessary information?

IOS atleast made it inside

#### Why would you like to do it?

info room was enough
This is annoying

#### How would you like to achieve it?

Remove it or redisgn it within placeholder

### Have you considered any alternatives?

Alternative would be placeholder to say "Message" for non e2ee and different placeholder for "Enctypted message"
Having lock with extended bar just warns user rather than inform it for something which is also choice of room

### Additional context

https://github.com/element-hq/element-x-ios/issues/3940

### Are you willing to provide a PR?

No