moderncv: refactor Preamble.j2.tex

rendercv/themes/moderncv/Preamble.j2.tex

@@ -60,12 +60,9 @@
 \homepage{<<cv.website|replace("https://", "")|reverse|replace("/", "", 1)|reverse>>}
 ((* endif *))
 
-((* set available_social_networks = ["LinkedIn", "GitHub", "Orcid" ]*))
 ((* if cv.social_networks *))
     ((* for network in cv.social_networks *))
-        ((* if network.network in available_social_networks *))
 \social[<<network.network|lower()>>]{<<network.username>>}
-        ((* endif *))
     ((* endfor *))
 ((* endif *))
 % Social icons