Remove a copyright comment (#293)

Author: stolstov

src/main/java/com/esri/core/geometry/JsonReaderCursor.java

@@ -19,21 +19,6 @@
  380 New York Street
  Redlands, California, USA 92373
 
- email: contracts@esri.com
- */
-/*
- COPYRIGHT 1995-2017 ESRI
-
- TRADE SECRETS: ESRI PROPRIETARY AND CONFIDENTIAL
- Unpublished material - all rights reserved under the
- Copyright Laws of the United States.
-
- For additional information, contact:
- Environmental Systems Research Institute, Inc.
- Attn: Contracts Dept
- 380 New York Street
- Redlands, California, USA 92373
-
  email: contracts@esri.com
  */