remove bintray as source repository in pom

main/pom.xml

@@ -50,13 +50,6 @@
 		<hamcrest.version>2.2</hamcrest.version>
 	</properties>
 
-	<repositories>
-		<repository>
-			<id>jcenter</id>
-			<url>https://jcenter.bintray.com</url>
-		</repository>
-	</repositories>
-
 	<dependencyManagement>
 		<dependencies>
 			<!-- modules -->