Remove no-locales file, it wasn't built properly

Update docs to not mention it

docs/html/_sources/index.txt

@@ -380,8 +380,8 @@ Translations
 
 .. Note :: 
    Translations take up a lot of space and will bloat your minified file.
-   At the time of writing, the difference between *converse.min.js* and
-   *converse.min.no-locales.js* is about 50KB! Therefore, make sure to only
+   At the time of writing, all the translations add about 50KB of extra data to
+   the minified javascript file. Therefore, make sure to only
    include those languages that you intend to support and remove from
    ./locale/locales.js those which you don't need. Remember to rebuild the
    minified file afterwards.

docs/html/index.html

@@ -375,8 +375,8 @@ manager, NPM.</p>
 <div class="admonition note">
 <p class="first admonition-title">Note</p>
 <p class="last">Translations take up a lot of space and will bloat your minified file.
-At the time of writing, the difference between <em>converse.min.js</em> and
-<em>converse.min.no-locales.js</em> is about 50KB! Therefore, make sure to only
+At the time of writing, all the translations add about 50KB of extra data to
+the minified javascript file. Therefore, make sure to only
 include those languages that you intend to support and remove from
 ./locale/locales.js those which you don&#8217;t need. Remember to rebuild the
 minified file afterwards.</p>

docs/source/index.rst

@@ -380,8 +380,8 @@ Translations
 
 .. Note :: 
    Translations take up a lot of space and will bloat your minified file.
-   At the time of writing, the difference between *converse.min.js* and
-   *converse.min.no-locales.js* is about 50KB! Therefore, make sure to only
+   At the time of writing, all the translations add about 50KB of extra data to
+   the minified javascript file. Therefore, make sure to only
    include those languages that you intend to support and remove from
    ./locale/locales.js those which you don't need. Remember to rebuild the
    minified file afterwards.