Switch textcaptcha to HTTPS

src/invidious.cr

@@ -48,9 +48,8 @@ ARCHIVE_URL     = URI.parse("https://archive.org")
 LOGIN_URL       = URI.parse("https://accounts.google.com")
 PUBSUB_URL      = URI.parse("https://pubsubhubbub.appspot.com")
 REDDIT_URL      = URI.parse("https://www.reddit.com")
-TEXTCAPTCHA_URL = URI.parse("http://textcaptcha.com")
+TEXTCAPTCHA_URL = URI.parse("https://textcaptcha.com")
 YT_URL          = URI.parse("https://www.youtube.com")
-YT_IMG_URL      = URI.parse("https://i.ytimg.com")
 
 CHARS_SAFE         = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
 TEST_IDS           = {"AgbeGFYluEA", "BaW_jenozKc", "a9LDPn-MO4I", "ddFvjfvPnqk", "iqKdEhx-dD4"}