Revert calypso localizeUrl's move to i18n-utils package

[lsl]

Reverts localizeUrl to its state prior to the move to i18n-utils package.

This is an intermediate PR, to make deploying the changes needed in #47492 a bit easier.

Testing instructions

• Follow Move localizeUrl to new i18n-utils package #46998

[matticbot]

Test live: https://calypso.live/?branch=update/revert-localizeUrl

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

App Entrypoints (~352 bytes removed 📉 [gzipped])

name                   parsed_size           gzip_size
entry-main                  -291 B  (-0.0%)      -95 B  (-0.0%)
entry-login                 -291 B  (-0.0%)      -86 B  (-0.0%)
entry-gutenboarding         -291 B  (-0.0%)      -80 B  (-0.0%)
entry-domains-landing       -291 B  (-0.1%)      -91 B  (-0.1%)

Common code that is always downloaded and parsed every time the app is loaded, no matter which route is used.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[p-jackson]

LGTM

I think I thought you would also revert all of the changes to i18n-utils that were made in #46998, but I guess there's no point since you're going to continue deving there.