GEO: Comment that we are not removing warning (#121459)

Change the warning message when you send a multifield under a geo field.
We *still* ignore the multifields but we do not plan to remove them. It
isn't worth breaking anyone.

x-pack/plugin/spatial/src/main/java/org/elasticsearch/xpack/spatial/index/mapper/GeoShapeWithDocValuesFieldMapper.java

@@ -172,10 +172,14 @@ public class GeoShapeWithDocValuesFieldMapper extends AbstractShapeGeometryField
         @Override
         public GeoShapeWithDocValuesFieldMapper build(MapperBuilderContext context) {
             if (multiFieldsBuilder.hasMultiFields()) {
+                /*
+                 * We have no plans to fail on multifields because it isn't worth breaking
+                 * even the tiny fraction of users.
+                 */
                 DEPRECATION_LOGGER.warn(
                     DeprecationCategory.MAPPINGS,
                     "geo_shape_multifields",
-                    "Adding multifields to [geo_shape] mappers has no effect and will be forbidden in future"
+                    "Adding multifields to [geo_shape] mappers has no effect"
                 );
             }
             GeometryParser geometryParser = new GeometryParser(

x-pack/plugin/spatial/src/main/java/org/elasticsearch/xpack/spatial/index/mapper/PointFieldMapper.java

@@ -100,10 +100,14 @@ public class PointFieldMapper extends AbstractPointGeometryFieldMapper<Cartesian
         @Override
         public FieldMapper build(MapperBuilderContext context) {
             if (multiFieldsBuilder.hasMultiFields()) {
+                /*
+                 * We have no plans to fail on multifields because it isn't worth breaking
+                 * even the tiny fraction of users.
+                 */
                 DEPRECATION_LOGGER.warn(
                     DeprecationCategory.MAPPINGS,
                     "point_multifields",
-                    "Adding multifields to [point] mappers has no effect and will be forbidden in future"
+                    "Adding multifields to [point] mappers has no effect"
                 );
             }
             CartesianPointParser parser = new CartesianPointParser(

x-pack/plugin/spatial/src/main/java/org/elasticsearch/xpack/spatial/index/mapper/ShapeFieldMapper.java

@@ -104,10 +104,14 @@ public class ShapeFieldMapper extends AbstractShapeGeometryFieldMapper<Geometry>
         @Override
         public ShapeFieldMapper build(MapperBuilderContext context) {
             if (multiFieldsBuilder.hasMultiFields()) {
+                /*
+                 * We have no plans to fail on multifields because it isn't worth breaking
+                 * even the tiny fraction of users.
+                 */
                 DEPRECATION_LOGGER.warn(
                     DeprecationCategory.MAPPINGS,
                     "shape_multifields",
-                    "Adding multifields to [shape] mappers has no effect and will be forbidden in future"
+                    "Adding multifields to [shape] mappers has no effect"
                 );
             }
             GeometryParser geometryParser = new GeometryParser(

x-pack/plugin/spatial/src/test/java/org/elasticsearch/xpack/spatial/index/mapper/GeoShapeWithDocValuesFieldMapperTests.java

@@ -519,7 +519,7 @@ public class GeoShapeWithDocValuesFieldMapperTests extends GeoFieldMapperTests {
             b.startObject("keyword").field("type", "keyword").endObject();
             b.endObject();
         }));
-        assertWarnings("Adding multifields to [" + getFieldName() + "] mappers has no effect and will be forbidden in future");
+        assertWarnings("Adding multifields to [" + getFieldName() + "] mappers has no effect");
     }
 
     public void testSelfIntersectPolygon() throws IOException {

x-pack/plugin/spatial/src/test/java/org/elasticsearch/xpack/spatial/index/mapper/PointFieldMapperTests.java

@@ -368,7 +368,7 @@ public class PointFieldMapperTests extends CartesianFieldMapperTests {
             b.startObject("keyword").field("type", "keyword").endObject();
             b.endObject();
         }));
-        assertWarnings("Adding multifields to [point] mappers has no effect and will be forbidden in future");
+        assertWarnings("Adding multifields to [point] mappers has no effect");
     }
 
     @Override

x-pack/plugin/spatial/src/test/java/org/elasticsearch/xpack/spatial/index/mapper/ShapeFieldMapperTests.java

@@ -338,7 +338,7 @@ public class ShapeFieldMapperTests extends CartesianFieldMapperTests {
             b.startObject("keyword").field("type", "keyword").endObject();
             b.endObject();
         }));
-        assertWarnings("Adding multifields to [" + getFieldName() + "] mappers has no effect and will be forbidden in future");
+        assertWarnings("Adding multifields to [" + getFieldName() + "] mappers has no effect");
     }
 
     public void testSelfIntersectPolygon() throws IOException {