Remove social icons data from Apertis theme

The Apertis theme doesn't support social media icons in its footer. Remove the
data.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>

themes/apertis/data/beautifulhugo/social.toml

-[[social_icons]]
-id = "email"
-url = "mailto:%s"
-title = "Email me"
-icon = "fas fa-envelope"
-
-[[social_icons]]
-id = "facebook"
-url = "https://www.facebook.com/%s"
-title = "Facebook"
-icon = "fab fa-facebook"
-
-[[social_icons]]
-id = "googleplus"
-url = "https://www.plus.google.com/%s"
-title = "Google+"
-icon = "fab fa-google-plus"
-
-[[social_icons]]
-id = "gitlab"
-url = "https://gitlab.com/%s"
-title = "GitLab"
-icon = "fab fa-gitlab"
-
-[[social_icons]]
-id = "github"
-url = "https://github.com/%s"
-title = "GitHub"
-icon = "fab fa-github"
-
-[[social_icons]]
-id = "twitter"
-url = "https://twitter.com/%s"
-title = "Twitter"
-icon = "fab fa-twitter"
-
-[[social_icons]]
-id = "reddit"
-url = "https://reddit.com/u/%s"
-title = "Reddit"
-icon = "fab fa-reddit-alien"
-
-[[social_icons]]
-id = "linkedin"
-url = "https://linkedin.com/in/%s"
-title = "LinkedIn"
-icon = "fab fa-linkedin"
-
-[[social_icons]]
-id = "xing"
-url = "https://www.xing.com/profile/%s"
-title = "Xing"
-icon = "fab fa-xing"
-
-[[social_icons]]
-id = "stackoverflow"
-url = "https://stackoverflow.com/%s"
-title = "StackOverflow"
-icon = "fab fa-stack-overflow"
-
-[[social_icons]]
-id = "snapchat"
-url = "https://www.snapchat.com/add/%s"
-title = "Snapchat"
-icon = "fab fa-snapchat-ghost"
-
-[[social_icons]]
-id = "instagram"
-url = "https://www.instagram.com/%s"
-title = "Instagram"
-icon = "fab fa-instagram"
-
-[[social_icons]]
-id = "youtube"
-url = "https://www.youtube.com/%s"
-title = "Youtube"
-icon = "fab fa-youtube"
-
-[[social_icons]]
-id = "soundcloud"
-url = "https://soundcloud.com/%s"
-title = "SoundCloud"
-icon = "fab fa-soundcloud"
-
-[[social_icons]]
-id = "spotify"
-url = "https://open.spotify.com/user/%s"
-title = "Spotify"
-icon = "fab fa-spotify"
-
-[[social_icons]]
-id = "bandcamp"
-url = "https://%s.bandcamp.com/"
-title = "Bandcamp"
-icon = "fab fa-bandcamp"
-
-[[social_icons]]
-id = "itchio"
-url = "https://itch.io/profile/%s"
-title = "itch.io"
-icon = "fas fa-gamepad"
-
-[[social_icons]]
-id = "steam"
-url = "https://steamcommunity.com/id/%s"
-title = "Steam"
-icon = "fab fa-steam"
-
-[[social_icons]]
-id = "keybase"
-url = "https://keybase.io/%s"
-title = "Keybase"
-icon = "fab fa-keybase"
-
-[[social_icons]]
-id = "Goodreads"
-url = "https://www.goodreads.com/%s"
-title = "Goodreads"
-icon = "fab fa-goodreads"
-
-