Remove duplicate condition in GeoConverters.

Closes: #3981

Author: sangyongchoi

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/GeoConverters.java

@@ -438,11 +438,6 @@ public Document convert(GeoCommand source) {
 				argument.add(toList(((Circle) shape).getCenter()));
 				argument.add(((Circle) shape).getRadius().getNormalizedValue());
 
-			} else if (shape instanceof Circle) {
-
-				argument.add(toList(((Circle) shape).getCenter()));
-				argument.add(((Circle) shape).getRadius());
-
 			} else if (shape instanceof Polygon) {
 
 				for (Point point : ((Polygon) shape).getPoints()) {