Lyrics Providers: Remove unreachable ones

[marcusmueller]

This was determined programmatically by means of trying to do a simple HTTP request to / of any of the URLs given:

from lxml import etree
from urllib import parse
import requests
doc = etree.parse("ultimate_providers.xml")
root = doc.getroot()
for provider in root:
    parsed_url = parse.urlparse(provider.get("url"))
    url = f"{parsed_url.scheme}://{parsed_url.netloc}/"
    try:
        requests.head(url, timeout=5)
    except Exception as e:
        print(parsed_url.netloc)

Note that these were also removed from songinfoview as present, and from outgoingdatacreator. The two lists there were found to be inconsistent, but this isn't subject of this PR.

Signed-off-by: Marcus Müller marcus_clementine@baseband.digital