Update team.json

Author: fchauveau

site/data/team.json

@@ -168,18 +168,6 @@
       "malt": "",
       "description": "",
       "linkedin": ""
-    },
-    {
-      "github": "",
-      "name": "Valentin Michalski",
-      "steam": "",
-      "photo": "",
-      "twitter": "",
-      "title": "Développeur fullstack",
-      "gitlab": "",
-      "malt": "",
-      "description": "",
-      "linkedin": ""
     }
   ]
-}
+}