Remove changelog shipped with the binaries.

Closes #1153

src/main/resources/notice.txt

@@ -1,5 +1,5 @@
 Spring Data for Apache Cassandra 3.3 M1 (2021.1.0)
-Copyright (c) [2010-2020] Pivotal Software, Inc.
+Copyright (c) [2010-2021] Pivotal Software, Inc.
 
 This product is licensed to you under the Apache License, Version 2.0 (the "License").
 You may not use this product except in compliance with the License.
@@ -8,23 +8,3 @@ This product may include a number of subcomponents with
 separate copyright notices and license terms. Your use of the source
 code for the these subcomponents is subject to the terms and
 conditions of the subcomponent's license, as noted in the LICENSE file.
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src/main/resources/readme.txt

@@ -1,17 +0,0 @@
-Spring Data Cassandra 1.1.0.M1
-------------------------------
-
-Spring Data Cassandra is released under the terms of the Apache Software License Version 2.0 (see license.txt).
-
-
-DISTRIBUTION CONTENTS:
-
-The JARs are available in the 'dist' directory, and the source JARs are in the 'src' directory.
-
-The reference manual and javadoc are located in the 'docs' directory.
-
-
-ADDITIONAL RESOURCES:
-
-Spring Data Homepage: https://projects.spring.io/spring-data
-Spring Data Forum:    https://forum.spring.io/forum/spring-projects/data/nosql