tini: don't explicitly depend on glibc

* Fixes pkgsStatic.tini build.
* Use postPatch instead of patchPhase
* Moves glibc dependency into docker.docker-tini

pkgs/applications/virtualization/docker/default.nix

···
       , tiniRev, tiniSha256, buildxSupport ? false
       # package dependencies
       , stdenv, fetchFromGitHub, buildGoPackage
-      , makeWrapper, installShellFiles, pkg-config
+      , makeWrapper, installShellFiles, pkg-config, glibc
       , go-md2man, go, containerd, runc, docker-proxy, tini, libtool
       , sqlite, iproute2, lvm2, systemd, docker-buildx
       , btrfs-progs, iptables, e2fsprogs, xz, util-linux, xfsprogs, git
···
       };
 
       # Do not remove static from make files as we want a static binary
-      patchPhase = "";
+      postPatch = "";
+
+      buildInputs = [ glibc glibc.static ];
 
       NIX_CFLAGS_COMPILE = "-DMINIMAL=ON";
     });

pkgs/applications/virtualization/tini/default.nix

···
-{ lib, stdenv, fetchFromGitHub, cmake, glibc }:
+{ lib, stdenv, fetchFromGitHub, cmake }:
 
 stdenv.mkDerivation rec {
   version = "0.19.0";
···
     sha256 ="1hnnvjydg7gi5gx6nibjjdnfipblh84qcpajc08nvr44rkzswck4";
   };
 
-  patchPhase = "sed -i /tini-static/d CMakeLists.txt";
+  postPatch = "sed -i /tini-static/d CMakeLists.txt";
 
   NIX_CFLAGS_COMPILE = "-DPR_SET_CHILD_SUBREAPER=36 -DPR_GET_CHILD_SUBREAPER=37";
 
   nativeBuildInputs = [ cmake ];
-  buildInputs = [ glibc glibc.static ];
 
   meta = with lib; {
     description = "A tiny but valid init for containers";