docs: Remove docs and test for #ddev-nodisplay

[hanoii]

Is there an existing issue for this?

• I have searched the existing issues

Output of ddev debug test

No response

Expected Behavior

I searched the code and found one test but I think all this stanza behavior was removed from ddev, not sure if by accident of on purpose. So if it was removed on purpose, probably worth removing it altogether and fixing https://github.com/ddev/ddev-addon-template/blob/main/install.yaml

project-wide search of #ddev-nodisplay

Searching 5610 files for "ddev-nodisplay"

~/Sites/work/ddev/cmd/ddev/cmd/testdata/TestCmdGetComplex/recipe/install.yaml:
    3  pre_install_actions:
    4  - |
    5:   #ddev-nodisplay
    6    echo "This action should not have any output"
    7  - |

~/Sites/work/ddev/docs/content/users/extend/additional-services.md:
  102  In any stanza of `pre_install_actions` and `post_install_actions` you can:
  103  
  104: * Use `#ddev-nodisplay` on a line to suppress any output.
  105  * Use `#ddev-description:<some description of what stanza is doing>` to instruct DDEV to output a description of the action it's taking.
  106  

2 matches across 2 files

Actual Behavior

n/a

Steps To Reproduce

No response

Anything else?

No response

[rfay]

It's used extensively in ddev/ddev-platformsh

https://github.com/ddev/ddev-platformsh/blob/main/install.yaml

[hanoii]

I am just saying it doesn't appear that there's code on ddev that does anything with it.

[hanoii]

See https://github.com/search?q=repo%3Addev%2Fddev%20%23ddev-nodisplay&type=code

[hanoii]

I found some of it was added on 80a2907

But that logic is not currently anywhere.

[rfay]

You're right of course.

I see it was removed in

• Improve output from ddev get, fixes #4423 #4431

(git log -S 'ddev-generated')

I think it turned out that the output was rarely useful, but I would think I would note it in the PR.

I guess if it could be removed for nearly a year and a half and nobody noticed maybe we don't need it.