remove unused exception and class

wise-webapp/src/main/java/com/wisemapping/model/LabelMindmap.java

@@ -1,50 +0,0 @@
-package com.wisemapping.model;
-
-import java.io.Serializable;
-
-public class LabelMindmap implements Serializable{
-
-    private int mindmapId;
-    private int labelId;
-
-    public LabelMindmap(int labelId, int mindmapId) {
-        this.mindmapId = mindmapId;
-        this.labelId = labelId;
-    }
-
-    public LabelMindmap() {}
-
-    public int getMindmapId() {
-        return mindmapId;
-    }
-
-    public void setMindmapId(int mindmapId) {
-        this.mindmapId = mindmapId;
-    }
-
-    public int getLabelId() {
-        return labelId;
-    }
-
-    public void setLabelId(int labelId) {
-        this.labelId = labelId;
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (!(o instanceof LabelMindmap)) return false;
-
-        LabelMindmap that = (LabelMindmap) o;
-
-        return labelId == that.labelId && mindmapId == that.mindmapId;
-
-    }
-
-    @Override
-    public int hashCode() {
-        int result = mindmapId;
-        result = 31 * result + labelId;
-        return result;
-    }
-}