Thrift-2602:Fix missing dist files
Client: build process
Patch: jfarrell

Introduced a bug in 8fd8c63 adding gen files to the dist, removing those
files from the EXTRA_DIST.
diff --git a/lib/php/test/Makefile.am b/lib/php/test/Makefile.am
index 1119d3f..1292b81 100755
--- a/lib/php/test/Makefile.am
+++ b/lib/php/test/Makefile.am
@@ -32,7 +32,5 @@
 clean-local:
 	$(RM) -r ./packages
 
-EXTRA_DIST = \
-	Test \
-	phpunit.xml
+EXTRA_DIST = Test