Remove boost-log link dependency from test/ext/Makefile

Change-Id: I388526c31c75e6af694b96141497c0c67d8fe310
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
diff --git a/test/ext/Makefile b/test/ext/Makefile
index 445b8bb..0c92c69 100644
--- a/test/ext/Makefile
+++ b/test/ext/Makefile
@@ -43,7 +43,6 @@
 
 LIB_VOM = $(VPP_TEST_BUILD_DIR)/vpp/vpp-api/vom/.libs/libvom.so
 VOM_LIBS = $(LIB_VOM) 	\
-	-lboost_log					\
 	-lboost_thread					\
 	-lboost_system					\
 	-lboost_filesystem				\