Revert "nixos/gitlab: properly clear out initializers"
Revert "nixos/gitlab: properly clear out initializers"

This reverts commit 2ee14c34ed1912ee31f1d4cc117b0ab25a3b20b1.

This caused the initializers directory to be cleaned out while gitlab
was running in some instances. We clean out the directory on the
preStart stage already, so ensuring existance and permissions should
suffice.

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs