BREAKING(fs): disallow new Deno.FsFile() (#25478)

Towards #22079

cli/tsc/dts/lib.deno.ns.d.ts

@@ -2056,16 +2056,6 @@ declare namespace Deno {
      * ```
      */
     readonly writable: WritableStream<Uint8Array>;
-    /**
-     * The constructor which takes a resource ID. Generally `FsFile` should
-     * not be constructed directly. Instead use {@linkcode Deno.open} or
-     * {@linkcode Deno.openSync} to create a new instance of `FsFile`.
-     *
-     * @deprecated This will be removed in Deno 2.0. See the
-     * {@link https://docs.deno.com/runtime/manual/advanced/migrate_deprecations | Deno 1.x to 2.x Migration Guide}
-     * for migration instructions.
-     */
-    constructor(rid: number);
     /** Write the contents of the array buffer (`p`) to the file.
      *
      * Resolves to the number of bytes written.

ext/fs/30_fs.js

@@ -590,16 +590,9 @@ class FsFile {
     });
     this.#rid = rid;
     if (!symbol || symbol !== SymbolFor("Deno.internal.FsFile")) {
-      internals.warnOnDeprecatedApi(
-        "new Deno.FsFile()",
-        new Error().stack,
-        "Use `Deno.open` or `Deno.openSync` instead.",
+      throw new TypeError(
+        "`Deno.FsFile` cannot be constructed, use `Deno.open()` or `Deno.openSync()` instead.",
       );
-      if (internals.future) {
-        throw new TypeError(
-          "`Deno.FsFile` cannot be constructed, use `Deno.open()` or `Deno.openSync()` instead.",
-        );
-      }
     }
   }