DATACMNS-1153 - Removed unreachable assertion in XmlRepositoryConfigurationSource.

Original pull request: #236.

src/main/java/org/springframework/data/repository/config/XmlRepositoryConfigurationSource.java

@@ -69,7 +69,6 @@ public class XmlRepositoryConfigurationSource extends RepositoryConfigurationSou
 		super(environment, ConfigurationUtils.getRequiredClassLoader(context.getReaderContext()), context.getRegistry());
 
 		Assert.notNull(element, "Element must not be null!");
-		Assert.notNull(context, "Context must not be null!");
 
 		this.element = element;
 		this.context = context;