Remove unused variable

Author: wipfli

tiles/src/main/java/com/protomaps/basemap/layers/Water.java

@@ -37,7 +37,6 @@ public void processPreparedOsm(SourceFeature ignoredSf, FeatureCollector feature
   public void processNe(SourceFeature sf, FeatureCollector features) {
     var sourceLayer = sf.getSourceLayer();
     var kind = "";
-    var themeMinZoom = 0;
     var themeMaxZoom = 0;
 
     // Only process certain Natural Earth layers
@@ -46,16 +45,12 @@ public void processNe(SourceFeature sf, FeatureCollector features) {
       sourceLayer.equals("ne_10m_ocean") ||
       sourceLayer.equals("ne_10m_lakes")) {
       if (sourceLayer.equals("ne_50m_ocean")) {
-        themeMinZoom = 0;
         themeMaxZoom = 4;
       } else if (sourceLayer.equals("ne_50m_lakes")) {
-        themeMinZoom = 0;
         themeMaxZoom = 4;
       } else if (sourceLayer.equals("ne_10m_ocean")) {
-        themeMinZoom = 5;
         themeMaxZoom = 5;
       } else if (sourceLayer.equals("ne_10m_lakes")) {
-        themeMinZoom = 5;
         themeMaxZoom = 5;
       }