remove socialnetworks data file, in preparation for remote_theme that doesn't support data folders; fixes #614

_data/SocialNetworks.yml

@@ -1,92 +0,0 @@
-# You can define your custom social network links here.
-# Use the same key you added in _config.yml -> social-network-links.
-# In addition to that you need to specify the following properties:
-#   name: Specify a user-friendly name that will be used as a link title
-#   urlTemplate: Define a URL template. The variable {value} will be replaced
-#                with the value of site.social-network-links.<key>
-#   icon: Specify valid fontawesome icon classes (style + icon),
-#         e.g. "fab fa-github" or "fas fa-rss"
-
-facebook:
-  name: "Facebook"
-  urlTemplate: "https://www.facebook.com/{value}"
-  icon: "fab fa-facebook"
-
-github:
-  name: "GitHub"
-  urlTemplate: "https://github.com/{value}"
-  icon: "fab fa-github"
-
-twitter:
-  name: "Twitter"
-  urlTemplate: "https://twitter.com/{value}"
-  icon: "fab fa-twitter"
-
-reddit:
-  name: "Reddit"
-  urlTemplate: "https://reddit.com/u/{value}"
-  icon: "fab fa-reddit"
-
-email:
-  name: "Email me"
-  urlTemplate: "mailto:{value}"
-  icon: "fas fa-envelope"
-
-linkedin:
-  name: "LinkedIn"
-  urlTemplate: "https://linkedin.com/in/{value}"
-  icon: "fab fa-linkedin"
-
-xing:
-  name: "Xing"
-  urlTemplate: "https://www.xing.com/profile/{value}"
-  icon: "fab fa-xing"
-
-stackoverflow:
-  name: "StackOverflow"
-  urlTemplate: "https://stackoverflow.com/users/{value}"
-  icon: "fab fa-stack-overflow"
-
-snapchat:
-  name: "Snapchat"
-  urlTemplate: "https://www.snapchat.com/add/{value}"
-  icon: "fab fa-snapchat-ghost"
-
-instagram:
-  name: "Instagram"
-  urlTemplate: "https://www.instagram.com/{value}"
-  icon: "fab fa-instagram"
-
-youtube:
-  name: "YouTube"
-  urlTemplate: "https://www.youtube.com/{value}"
-  icon: "fab fa-youtube"
-
-spotify:
-  name: "Spotify"
-  urlTemplate: "https://open.spotify.com/user/{value}"
-  icon: "fab fa-spotify"
-
-telephone:
-  name: "Phone"
-  urlTemplate: "tel:{value}"
-  icon: "fas fa-phone"
-
-rss:
-  name: "RSS"
-  icon: "fas fa-rss"
-
-steam:
-  name: "Steam"
-  urlTemplate: "https://steamcommunity.com/id/{value}"
-  icon: "fab fa-steam"
-
-twitch:
-  name: "Twitch"
-  urlTemplate: "https://www.twitch.tv/{value}"
-  icon: "fab fa-twitch"
-
-yelp:
-  name: "Yelp"
-  urlTemplate: "https://{value}.yelp.com"
-  icon: "fab fa-yelp"