DOC-3329: Remove mention of themes from new NPM documentation.

Author: kemister85

modules/ROOT/pages/npm-projects.adoc

@@ -71,7 +71,7 @@ The `+tinymce-premium+` package includes:
 
 * All premium plugins
 * License key manager plugin
-* Premium skins, themes, icons, and language packs for premium plugins
+* Premium skins icons, and language packs for premium plugins
 
 [NOTE]
 ====

modules/ROOT/partials/install/npm-premium-plugins-install.adoc

@@ -25,7 +25,7 @@ The `+tinymce-premium+` package includes:
 
 * All premium plugins.
 * License key manager plugin.
-* Premium skins, themes, icons, and language packs for premium plugins.
+* Premium skins, icons, and language packs for premium plugins.
 
 [IMPORTANT]
 ====

modules/ROOT/partials/module-loading/bundling-premium-plugins-npm.adoc

@@ -1,6 +1,6 @@
 === Premium plugins from NPM
 
-The `+tinymce-premium+` package is the recommended way to install and use premium plugins with {productname}. It includes all premium plugins, skins, themes, icons, and language packs.
+The `+tinymce-premium+` package is the recommended way to install and use premium plugins with {productname}. It includes all premium plugins, skins, icons, and language packs.
 
 To bundle premium plugins from the NPM package, import the individual plugins you need.