refactor: remove unused 40_diagnostics.js file (#18021)

This file was not used anywhere - even though it exposed an unstable
"Deno.DiagnosticCategory" API. Seems like a left over from when we
had "Deno.emit" API.

1 files changed, 0 insertions, 19 deletions

diff --git a/runtime/js/40_diagnostics.js b/runtime/js/40_diagnostics.js
deleted file mode 100644
index 669a54263..000000000
--- a/runtime/js/40_diagnostics.js
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-
-// Diagnostic provides an abstraction for advice/errors received from a
-// compiler, which is strongly influenced by the format of TypeScript
-// diagnostics.
-
-const DiagnosticCategory = {
-  0: "Warning",
-  1: "Error",
-  2: "Suggestion",
-  3: "Message",
-
-  Warning: 0,
-  Error: 1,
-  Suggestion: 2,
-  Message: 3,
-};
-
-export { DiagnosticCategory };