Remove outdated note regarding ephemeral messages

[anand2312]

About this pull request

Updates docstring in SlashContext.send to remove an outdated note, regarding embeds in ephemeral messages.
Closes #167

Checklist

• I've checked this pull request runs on Python 3.6.X.
• This fixes something in Issues.
  • Issue:
• This adds something new.
• There is/are breaking change(s).
• (If required) Relevant documentation has been updated/added.
• This is not a code change. (README, docs, etc.)

[quirky-bluejay]

The warning on send should also be removed

[anand2312]

The warning on send should also be removed

This?

[quirky-bluejay]

I meant the code logger warming, but that too. And yeah that bit of code for sending files should be changed, if files are now supported.

[anand2312]

I meant the code logger warming, but that too. And yeah that bit of code for sending files should be changed, if files are now supported.

I don't know if they are? I made this PR only because of a discussion I saw in the server, and am not familiar with this codebase
If you want me to make some more changes, can you point exactly which files / what needs to be done?

[quirky-bluejay]

If you'd like me to make those changes I'm happy to open another pr!

[eunwoo1104]

Merging, thank you for contributing!