MongoClientWrapper: Remove unnecessary call to .build()

Signed-off-by: Cai Yufei (INST/ECS1) <yufei.cai@bosch-si.com>

services/utils/persistence/src/main/java/org/eclipse/ditto/services/utils/persistence/mongo/MongoClientWrapper.java

@@ -188,7 +188,7 @@ private static void buildSSLSettings(final SslSettings.Builder builder) {
             throw new IllegalStateException("KeyManagementException ", e);
         }
 
-        builder.context(sslContext).enabled(true).build();
+        builder.context(sslContext).enabled(true);
     }
 
     /**