Remove streets, dark and light styles due to copyright issues

_sass/_map.scss

@@ -9,7 +9,7 @@
 }
 
 .map-button {
-  width: 20%;
+  width: 50%;
   height: 50px;
   background-color: #44A886;
   color: white;

js/maps.js

@@ -17,17 +17,11 @@ document.addEventListener("DOMContentLoaded", function() {
 	}
 
 	var basic = document.getElementById("vector-basic");
-	var streets = document.getElementById("vector-streets");
-	var dark = document.getElementById("vector-dark");
-	var light = document.getElementById("vector-light");
-	if(bright && basic && streets && dark && light) {
-		var styles = ["#bright", "#basic", "#streets", "#dark", "#light"];
+	if(bright && basic) {
+		var styles = ["#bright", "#basic"];
 		var styleUrl = "https://raw.githubusercontent.com/osm2vectortiles/mapbox-gl-styles/master/styles/";
 		addOnClickEventListener(bright, vectorMap, styleUrl + "bright-v9-cdn.json", 0, styles);
 		addOnClickEventListener(basic, vectorMap, styleUrl + "basic-v9-cdn.json", 1, styles);
-		addOnClickEventListener(streets, vectorMap, styleUrl + "streets-v9-cdn.json", 2, styles);
-		addOnClickEventListener(dark, vectorMap, styleUrl + "dark-v9-cdn.json", 3, styles);
-		addOnClickEventListener(light, vectorMap, styleUrl + "light-v9-cdn.json", 4, styles);
 	}
 
 	// instantiate map clipboard

maps/index.md

@@ -15,10 +15,7 @@ published: true
 
 <div id="map-container">
 	<button id="vector-bright" class="map-button">Bright</button
-	><button id="vector-basic" class="map-button">Basic</button
-	><button id="vector-streets" class="map-button">Streets</button
-	><button id="vector-dark" class="map-button">Dark</button
-	><button id="vector-light" class="map-button">Light</button>
+	><button id="vector-basic" class="map-button">Basic</button>
 </div>
 <div id="vector-map" class="map-preview"></div>
 <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.18.0/mapbox-gl.js'></script>
@@ -30,15 +27,6 @@ published: true
 	<div id="basic">
 		<script src="https://gist.github.com/manuelroth/2a20607d02b71b29d02a1963a7e12e6e.js"></script>
 	</div>
-	<div id="streets">
-		<script src="https://gist.github.com/manuelroth/d0e37ef2e8f8e7080317c779044979d7.js"></script>
-	</div>
-	<div id="dark">
-		<script src="https://gist.github.com/manuelroth/80cb27ff4eecd822661baf3abeab6150.js"></script>
-	</div>
-	<div id="light">
-		<script src="https://gist.github.com/manuelroth/fdb546e2abf91ec1b3b3f9b7b253aec3.js"></script>
-	</div>
 </div>
 <div id="map-clipboard">
 	<button class="map-clipboard-button" onclick="showCopiedHint()">