R1:030e05aa4ca5

Remove reply handler instructions from email

Summary:
Ref T7199. Although this is useful for discovery, it's un-useful enough that we already have an option to disable it, and most applications do not provide any meaningful instructions.

Throwing it away makes it easier to move forward and lets us get rid of a config option.

This is becoming a more advanced/power-user feature anyway, and the new syntax will be significantly more complex and hard to explain with a one-liner. I'm currently thinking that…