Revert "Specify versions in docs pom"

This reverts commit ff0b505.

docs/pom.xml

@@ -25,17 +25,15 @@
 		<groovy.version>4.0.6</groovy.version>
 		<generate-adoc-resource.phase>process-classes</generate-adoc-resource.phase>
 	</properties>
-
+	
 	<dependencies>
 		<dependency>
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-cloud-starter-contract-stub-runner</artifactId>
-			<version>4.1.4</version>
 		</dependency>
 		<dependency>
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-cloud-starter-contract-verifier</artifactId>
-			<version>4.1.4</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.amqp</groupId>