Remove duplicate text on Creating iOS plugins (#4959)

Godot iOS Plugins is said on the link, no need to say it twice

tutorials/platform/ios/ios_plugin.rst

@@ -39,7 +39,7 @@ An iOS plugin can have the same functionality as a Godot module but provides mor
 
 Here are the steps to get a plugin's development started. We recommend using `Xcode <https://developer.apple.com/develop/>`_ as your development environment.
 
-.. seealso:: The `Godot iOS Plugins <https://github.com/godotengine/godot-ios-plugins>`_ Godot iOS plugins.
+.. seealso:: The `Godot iOS Plugins <https://github.com/godotengine/godot-ios-plugins>`_.
 
     The `Godot iOS plugin template <https://github.com/naithar/godot_ios_plugin>`_ gives you all the boilerplate you need to get your iOS plugin started.