removed site from source artifact (it's available from src/main/site)

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/companions/extras/trunk@1531826 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/assembly/src.xml b/src/main/assembly/src.xml
index 6a1c829..7f03bb5 100644
--- a/src/main/assembly/src.xml
+++ b/src/main/assembly/src.xml
@@ -22,7 +22,6 @@
 		<format>tar.gz</format>
 	</formats>
 	<baseDirectory>apache-log4j-extras-${project.version}</baseDirectory>
-    <includeSiteDirectory>true</includeSiteDirectory>
 	<fileSets>
 		<fileSet>
 			<includes>