Remove error reporting capabilities of unexpected errors

[jezdez]

Checklist

• [X] I added a descriptive title
• [X] I searched open requests and couldn't find a duplicate

What is the idea?

Conda has an error submission system that is currently not well-used and creates additional maintenance burden on the conda ecosystem. As such, it should be considered deprecated and removed.

It was previously undocumented that it's configurable: f0321d97b47d98750d10cb749fdea428e009bfc7

Why is this needed?

Reduce maintenance effort for server side hosting.

What should happen?

• Remove the code
• Inform the users.

Additional Context

• https://github.com/conda/conda/blob/736f8fbabce44d73e9cffc974446f9eba5c90ee0/conda/exception_handler.py#L244-L383
• f0321d97b47d98750d10cb749fdea428e009bfc7