Remove unused methods in ValueType (#34624)

The removed methods seem unused in the rest of the project.

Author: Christoph Büscher

server/src/main/java/org/elasticsearch/search/aggregations/support/ValueType.java

@@ -77,10 +77,6 @@ public boolean isNumeric() {
         }
     },
     GEOPOINT((byte) 8, "geo_point", "geo_point", ValuesSourceType.GEOPOINT, IndexGeoPointFieldData.class, DocValueFormat.GEOHASH) {
-        @Override
-        public boolean isGeoPoint() {
-            return true;
-        }
     },
     BOOLEAN((byte) 9, "boolean", "boolean", ValuesSourceType.NUMERIC, IndexNumericFieldData.class, DocValueFormat.BOOLEAN) {
         @Override
@@ -108,10 +104,6 @@ public boolean isNumeric() {
         this.defaultFormat = defaultFormat;
     }
 
-    public String description() {
-        return description;
-    }
-
     public String getPreferredName() {
         return preferredName;
     }
@@ -120,10 +112,6 @@ public ValuesSourceType getValuesSourceType() {
         return valuesSourceType;
     }
 
-    public boolean compatibleWith(IndexFieldData fieldData) {
-        return fieldDataType.isInstance(fieldData);
-    }
-
     public boolean isA(ValueType valueType) {
         return valueType.valuesSourceType == valuesSourceType &&
                 valueType.fieldDataType.isAssignableFrom(fieldDataType);
@@ -145,10 +133,6 @@ public boolean isFloatingPoint() {
         return false;
     }
 
-    public boolean isGeoPoint() {
-        return false;
-    }
-
     public static ValueType resolveForScript(String type) {
         switch (type) {
             case "string":  return STRING;