chore:Update NOTICE file to remove copyright date (#6955)

sammartinez · web-flow · commit 7a3bc80082bd · 2020-10-13T09:08:05.000-06:00
diff --git a/NOTICE b/NOTICE
@@ -1,2 +1,2 @@
 Amplify for JavaScript
-Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`Amplify for JavaScript`
`2`		`-Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.`
	`2`	`+Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.`