nixpkgs manual: Remove obsolete warning (#21117)

PR #815 has already been cherry-picked into the default nix version 1.11.8.

authored by Linus Heckemann and committed by Vladimír Čunát 5c7f4669 3d893ac1

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doc/multiple-output.xml
··· 16 17 <section><title>Installing a split package</title> 18 <para>When installing a package via <varname>systemPackages</varname> or <command>nix-env</command> you have several options:</para> 19 - <warning><para>Currently <command>nix-env</command> almost always installs all outputs until https://github.com/NixOS/nix/pull/815 gets merged.</para></warning> 20 <itemizedlist> 21 <listitem><para>You can install particular outputs explicitly, as each is available in the Nix language as an attribute of the package. The <varname>outputs</varname> attribute contains a list of output names.</para></listitem> 22 <listitem><para>You can let it use the default outputs. These are handled by <varname>meta.outputsToInstall</varname> attribute that contains a list of output names.</para>
··· 16 17 <section><title>Installing a split package</title> 18 <para>When installing a package via <varname>systemPackages</varname> or <command>nix-env</command> you have several options:</para> 19 <itemizedlist> 20 <listitem><para>You can install particular outputs explicitly, as each is available in the Nix language as an attribute of the package. The <varname>outputs</varname> attribute contains a list of output names.</para></listitem> 21 <listitem><para>You can let it use the default outputs. These are handled by <varname>meta.outputsToInstall</varname> attribute that contains a list of output names.</para>