Remove unused constants from bsb_build_schemas.ml (#6473)

Author: cknitt

jscomp/bsb/bsb_build_schemas.ml

@@ -22,17 +22,11 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *)
 
-(* let files = "files" *)
-let version = "version"
 let name = "name"
 
-(* let ocaml_config = "ocaml-config" *)
-let bsdep = "bsdep"
 let ppx_flags = "ppx-flags"
 let pp_flags = "pp-flags"
-let bsc = "bsc"
 let bs_external_includes = "bs-external-includes"
-let bs_lib_dir = "bs-lib-dir"
 let bs_dependencies = "bs-dependencies"
 let pinned_dependencies = "pinned-dependencies"
 let bs_dev_dependencies = "bs-dev-dependencies"
@@ -47,10 +41,8 @@ let resources = "resources"
 let public = "public"
 let js_post_build = "js-post-build"
 let cmd = "cmd"
-let ninja = "ninja"
 let package_specs = "package-specs"
 let type_ = "type"
-let dev = "dev"
 let export_all = "all"
 let export_none = "none"
 let use_stdlib = "use-stdlib"
@@ -62,9 +54,6 @@ let jsx_version = "version"
 let jsx_module = "module"
 let jsx_mode = "mode"
 let jsx_v3_dependencies = "v3-dependencies"
-let entries = "entries"
-let backend = "backend"
-let main_module = "main-module"
 let cut_generators = "cut-generators"
 let generators = "generators"
 let command = "command"
@@ -77,7 +66,6 @@ let error = "error"
 let suffix = "suffix"
 let gentypeconfig = "gentypeconfig"
 let language = "language"
-let path = "path"
 let ignored_dirs = "ignored-dirs"
 
 let uncurried = "uncurried"