diff --git a/external/dist/lib/README.md b/external/dist/lib/README.md
deleted file mode 100644
index d50ace6e1..000000000
--- a/external/dist/lib/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-It's *very highly* recommended to *not* use these files, but rather use the
-pre-built library as found in e.g. the `/build`, `/web`, and `/image_decoders`
-folders in the root of this repository.
-
-Please note that the "lib" build target exists mostly to enable unit-testing in
-Node.js/GitHub, and that you'll need to handle e.g. any necessary polyfills
-and/or Node.js dependencies yourself if using the files in this folder.
diff --git a/gulpfile.js b/gulpfile.js
index f10ef92de..e10bc2fc8 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -58,7 +58,6 @@ const MINIFIED_LEGACY_DIR = BUILD_DIR + "minified-legacy/";
 const JSDOC_BUILD_DIR = BUILD_DIR + "jsdoc/";
 const GH_PAGES_DIR = BUILD_DIR + "gh-pages/";
 const SRC_DIR = "src/";
-const LIB_DIR = BUILD_DIR + "lib/";
 const DIST_DIR = BUILD_DIR + "dist/";
 const TYPES_DIR = BUILD_DIR + "types/";
 const TMP_DIR = BUILD_DIR + "tmp/";
@@ -2233,7 +2232,6 @@ gulp.task(
     "components-legacy",
     "image_decoders",
     "image_decoders-legacy",
-    "lib",
     "minified",
     "minified-legacy",
     "types",
@@ -2323,9 +2321,6 @@ gulp.task(
             base: IMAGE_DECODERS_LEGACY_DIR,
           })
           .pipe(gulp.dest(DIST_DIR + "legacy/image_decoders/")),
-        gulp
-          .src(LIB_DIR + "**/*", { base: LIB_DIR })
-          .pipe(gulp.dest(DIST_DIR + "lib/")),
         gulp
           .src(TYPES_DIR + "**/*", { base: TYPES_DIR })
           .pipe(gulp.dest(DIST_DIR + "types/")),