Remove explicit version declarations from jMolecules dependencies.

Fixes GH-2177.

spring-data-jdbc/pom.xml

@@ -196,14 +196,12 @@
 		<dependency>
 			<groupId>org.jmolecules</groupId>
 			<artifactId>jmolecules-ddd</artifactId>
-			<version>${jmolecules}</version>
 			<scope>test</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>org.jmolecules.integrations</groupId>
 			<artifactId>jmolecules-spring</artifactId>
-			<version>${jmolecules-integration}</version>
 			<scope>test</scope>
 		</dependency>