Get rid of unecessary apt/php dependency helper (follow-up of #1018)

[alexAubin]

The problem

c.f #1018

Solution

Once no more apps is using these, we shall remove them entirely...

PR Status

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How to test

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Validation

• [ ] Principle agreement 0/2 :
• [ ] Quick review 0/1 :
• [ ] Simple test 0/1 :
• [ ] Deep review 0/1 :