[master] Clean template files produced by perfdhcp unit test.

Discussed with jreed on jabber.

tests/tools/perfdhcp/templates/Makefile.am

@@ -1,8 +1,12 @@
 SUBDIRS = .
 
+# The test1.hex and test2.hex are created by the TestControl.PacketTemplates
+# unit tests and have to be removed.
+CLEANFILES = test1.hex test2.hex
+
 perfdhcpdir = $(pkgdatadir)
-perfdhcp_DATA = discover-example.hex request4-example.hex \
-                solicit-example.hex request6-example.hex
+perfdhcp_DATA = discover-example.hex request4-example.hex
+perfdhcp_DATA += solicit-example.hex request6-example.hex
 
 EXTRA_DIST = discover-example.hex request4-example.hex
 EXTRA_DIST += solicit-example.hex request6-example.hex