[TS] Remove fast-text-encoding polyfill (#4283)

# Description of Changes

Hasn't been needed in months (since #3800), it'd be nice to get it in to
2.0 if possible.

# Expected complexity level and risk

1

# Testing

- [x] Builds successfully
- [ ] <!-- maybe a test you want a reviewer to do, so they can check it
off when they're satisfied. -->

Author: coolreader18

crates/bindings-typescript/package.json

@@ -170,7 +170,6 @@
   ],
   "dependencies": {
     "base64-js": "^1.5.1",
-    "fast-text-encoding": "^1.0.0",
     "headers-polyfill": "^4.0.3",
     "prettier": "^3.3.3",
     "pure-rand": "^7.0.1",

crates/bindings-typescript/src/server/polyfills.ts

@@ -1,2 +1 @@
-import 'fast-text-encoding';
 import 'url-polyfill';

crates/bindings-typescript/tsup.config.ts

@@ -192,7 +192,7 @@ export default defineConfig([
       moduleSideEffects: ['src/server/polyfills.ts'],
     },
     external: ['undici', /^spacetime:sys.*$/],
-    noExternal: ['base64-js', 'fast-text-encoding', 'statuses', 'pure-rand'],
+    noExternal: ['base64-js', 'statuses', 'pure-rand'],
     outExtension,
     esbuildOptions: commonEsbuildTweaks(),
   },