Remove a Databin
Databins can be entirely removed.
Create a databin.
In[1]:=

bin = CreateDatabin[]
Remove the databin entirely.
In[2]:=

DeleteFile[bin]
The databin is no longer in your list of databins.
In[3]:=

MemberQ[Databins[], bin]
Out[3]=

Databins can be entirely removed.
Create a databin.
bin = CreateDatabin[]
Remove the databin entirely.
DeleteFile[bin]
The databin is no longer in your list of databins.
MemberQ[Databins[], bin]