chore(tools): Remove deprecated depot-build tool

This has been superseded by magrathea.

Change-Id: Ief4a3d1b81e51e7a9c9a0112584fa7efc8aca63f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5328
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI

bin/__dispatch.sh

@@ -16,9 +16,6 @@ case "${TARGET_TOOL}" in
   age-keygen)
     attr="third_party.nixpkgs.age"
     ;;
-  depot-build)
-    attr="tools.depot-build"
-    ;;
   depot-nixpkgs-update)
     attr="tools.depot-nixpkgs-update"
     ;;

bin/depot-build

@@ -1 +0,0 @@
-__dispatch.sh

tools/depot-build.nix

@@ -1,8 +0,0 @@
-# Utility script for building any arbitrary depot path in its folder.
-{ pkgs, ... }:
-
-pkgs.writeShellScriptBin "depot-build" ''
-  TARGET=$(git rev-parse --show-prefix | sed 's|/$||')
-  echo "Building //$TARGET"
-  nix-build -A $(echo $TARGET | sed 's|/|.|g') $(${pkgs.git}/bin/git rev-parse --show-toplevel)
-''