Polish "Exclude JUnit from json-simple"

Closes gh-13438

Author: snicoll

spring-boot-dependencies/pom.xml

@@ -649,7 +649,6 @@
 				<artifactId>json-simple</artifactId>
 				<version>${simple-json.version}</version>
 				<exclusions>
-					<!-- Remove compile time dependency on junit, see https://github.com/fangyidong/json-simple/issues/91 -->
 					<exclusion>
 						<groupId>junit</groupId>
 						<artifactId>junit</artifactId>