Remove gamemode and flying switching

Fixes Xephi/AuthMeReloaded#355
Fixes Xephi/AuthMeReloaded#320
Fixes Xephi/AuthMeReloaded#258
Fixes Xephi/AuthMeReloaded#246

src/main/java/fr/xephi/authme/cache/backup/DataFileCache.java

@@ -6,19 +6,16 @@ public class DataFileCache {
 
     private final String group;
     private final boolean operator;
-    private final boolean flying;
 
     /**
      * Constructor for DataFileCache.
      *
      * @param group    String
      * @param operator boolean
-     * @param flying   boolean
      */
-    public DataFileCache(String group, boolean operator, boolean flying) {
+    public DataFileCache(String group, boolean operator) {
         this.group = group;
         this.operator = operator;
-        this.flying = flying;
     }
 
     /**
@@ -38,13 +35,4 @@ public class DataFileCache {
     public boolean getOperator() {
         return operator;
     }
-
-    /**
-     * Method isFlying.
-     *
-     * @return boolean
-     */
-    public boolean isFlying() {
-        return flying;
-    }
 }

src/main/java/fr/xephi/authme/cache/backup/JsonCache.java

@@ -154,7 +154,6 @@ public class JsonCache {
             JsonElement e;
             String group = null;
             boolean operator = false;
-            boolean flying = false;
 
             if ((e = jsonObject.get("group")) != null) {
                 group = e.getAsString();
@@ -162,11 +161,8 @@ public class JsonCache {
             if ((e = jsonObject.get("operator")) != null) {
                 operator = e.getAsBoolean();
             }
-            if ((e = jsonObject.get("flying")) != null) {
-                flying = e.getAsBoolean();
-            }
 
-            return new DataFileCache(group, operator, flying);
+            return new DataFileCache(group, operator);
         }
     }
 
@@ -187,7 +183,6 @@ public class JsonCache {
             JsonObject jsonObject = new JsonObject();
             jsonObject.addProperty("group", dataFileCache.getGroup());
             jsonObject.addProperty("operator", dataFileCache.getOperator());
-            jsonObject.addProperty("flying", dataFileCache.isFlying());
 
             return jsonObject;
         }