Issue removing Media Editor Tabs -- Duplicate Items

Question

I'm following the advice found in several places to remove tabs by using the following filter. However, the same number of tabs appear, the last one is simply displayed x number of times. I'm running Multisite, 4.0

The filter:

function remove_media_editor_tabs( $strings ) {
    $user_id = get_current_user_id();
    $user = get_userdata( $user_id );

    $user_has_role = array_intersect( $user->roles, array(
        'role_one', 
        'role_two' 
    ) );

    if ( $user_has_role ) {
        // remove "Create New Gallery"
        unset( $strings["createGalleryTitle"] );

        // remove "Set Featured Image"
        unset( $strings["setFeaturedImageTitle"] );

        // remove "Create Video Playlist"
        unset( $strings["createVideoPlaylistTitle"] );
    }

    return $strings;
}
add_filter('media_view_strings', 'remove_media_editor_tabs');

The screenshot:

Answer 1

Changing strings to null or to empty strings removes items from left menu of the uploader and corresponding tabs. Paste this code in functions.php:

function remove_media_tab( $strings ) {
    if( !current_user_can( 'administrator' ) ) {
         $strings["createGalleryTitle"] = "";
         $strings["setFeaturedImageTitle"] = "";
         $strings["insertFromUrlTitle"] = "";
         $strings['createPlaylistTitle'] = "";
         $strings['createVideoPlaylistTitle'] = "";
    }
    return $strings;
}
add_filter( 'media_view_strings', 'remove_media_tab' );

You can also get rid of "create audio playlist" and "create video playlist" buttons with filters:

add_filter( 'media_library_show_audio_playlist', function(){ 
    return false; 
}, 10, 1 );

add_filter( 'media_library_show_video_playlist', function(){ 
    return false; 
}, 10, 1 );

This would additionally save you from running default query that checks if there are any video/audio files in the media library.

Answer 2

This is the closest I've been able to get, but if anyone has any other ideas, that would be great. I don't have a firm grasp on the Backbone part of WP just yet, and have never used it, so I'm not sure extending entire objects is the way to override default functionality. Any feedback would be helpful.

/**
 * Replace the 'insert media into post' frame with 
 * one that hides featured image, gallery, and other states
 */
var originalPostMediaFrame = wp.media.view.MediaFrame.Post;

wp.media.view.MediaFrame.Post = originalPostMediaFrame.extend({

    activate: function() {
        originalPostMediaFrame.prototype.activate.apply(this,arguments);

        this.menuItemVisibility( 'featured-image', 'hide' );
        this.menuItemVisibility( 'video-playlist', 'hide' );
        this.menuItemVisibility( 'playlist', 'hide' );
        this.menuItemVisibility( 'gallery', 'hide' );
    }
});