Fabian Homborg dd48fdc970 Remove hostname function
This was only a thing in cygwin, and only a workaround because
cygwin's hostname was broken in 2013 and our sample prompts called it,
which caused errors in fish_config.

Our sample prompts no longer call `hostname` at all (they use
`prompt_hostname`, which uses the variable), and it's possible
cygwin's hostname was fixed in the meantime.

Fixes #7669.
2021-01-31 08:36:00 +01:00
..
2021-01-31 08:36:00 +01:00