removed oembed providers which are already enabled by default in wordpres (in class-wp-oembed.php)

embed.php

@@ -73,7 +73,7 @@ function register_embed_handlers() {
     add_shortcode('archiveorg', 'shortcode_archiveorg');
     wp_embed_register_handler( 'archive', '#http[s]?://(?:www\.)?archive\.org/.*/(?<id>.*)#i', 'wp_embed_handler_archive' );
 
-    wp_embed_register_handler( 'dctptv', '#http(s)?://www.dctp.tv/embed/.*?/#i', 'wp_embed_handler_dctptv' );
+    wp_embed_register_handler( 'dctptv', '#http(s)?://www.dctp\.tv/embed/.*?/#i', 'wp_embed_handler_dctptv' );
 
     wp_embed_register_handler( 'googlemaps', '#http(s)?://maps\.google\.[^\.]+/(.*)#i', 'wp_embed_handler_google_maps');
     wp_embed_register_handler( 'openstreetmap', '#http(s)?://www\.openstreetmap\.org/export/embed.html\?(.*)#i', 'wp_embed_handler_openstreetmap');
@@ -83,24 +83,14 @@ add_action('wp', 'register_embed_handlers');
 /* Noembed -- list selected from https://noembed.com/providers */
 $noembed = 'https://noembed.com/embed';
 $noembed_site = array(
-    "https?://soundcloud\\.com/.*",   
     "https?://www\\.urbandictionary\\.com/define\\.php\\?term=.+",
-    "https?://(?:www\\.)?vimeo\\.com/.+",
     "https?://(?:www\\.)?xkcd\\.com/\\d+/?",
     "https?://.*\\.deviantart\\.com/art/.*",
     "https?://.*\\.deviantart\\.com/.*#/d.*",
-    "https?://.*\\.flickr\\.com/photos/.*",
-    "https?://flic\\.kr/p/.*",
     "https?://instagram\\.com/p/.*",
     "https?://instagr\\.am/p/.*",
     "https?://instagram\\.com/p/.*",
     "https?://instagr\\.am/p/.*",
-    "https?://www\\.slideshare\\.net/.*/.*",
-    "https?://fr\\.slideshare\\.net/.*/.*",
-    "https?://de\\.slideshare\\.net/.*/.*",
-    "https?://es\\.slideshare\\.net/.*/.*",
-    "https?://pt\\.slideshare\\.net/.*/.*",
-    "https?://imgur\\.com/(?:[^\\/]+/)?[0-9a-zA-Z]+$",
     "https?://bash\\.org/\\?(\\d+)"
 );
 
@@ -109,13 +99,9 @@ foreach ($noembed_site as $site){
     wp_oembed_add_provider('#' . $site . '#i', $noembed, true);
 }
 
-/* Ted Talks */
-wp_oembed_add_provider('http://www.ted.com/talks/*', 'http://www.ted.com/talks/oembed.json', false);
 /* arkiwi */
 wp_oembed_add_provider('http://www.arkiwi.org/*','http://www.arkiwi.org/oembed/', false );
 /* bambuser */
 wp_oembed_add_provider('http://*.bambuser.com/*','http://api.bambuser.com/oembed', false);
-/* mixcloud */
-wp_oembed_add_provider('#https?://(www\.)?mixcloud\.com/.*#i', 'http://mixcloud.com/oembed', true);
 
 ?>