Purge all avatars.

[Fiiily]

So, I fucked up during an upgrade and I basically rekt my nodebb install.
So I decided to start from scratch and use the same DB, I do the things and it's all working- great.
But there is a tiny issue, no uploads were retained as I messed up my backup of avatars and such.
How can I purge all user avatars from my database? I have root access.

[pichalite]

@Fiiily redis or mongo?

[Fiiily]

Mongo for the databasing.

[Fiiily]

@pichalite ^^^