autotest: dbus_send_unittest: Remove LinkMonitorTechnologies

LinkMonitorTechnologies is going to be deprecated in crrev.com/c/2827849

BUG=b:147256664
TEST=`./dbus_send_unittest.py` said OK

Change-Id: Id2b7343216b467e7a4c420df2956b8ecfcd054aa
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/2839288
Tested-by: Jie Jiang <jiejiang@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Commit-Queue: Jie Jiang <jiejiang@chromium.org>
diff --git a/client/common_lib/cros/dbus_send_unittest.py b/client/common_lib/cros/dbus_send_unittest.py
index 7a32fb2..9918626 100755
--- a/client/common_lib/cros/dbus_send_unittest.py
+++ b/client/common_lib/cros/dbus_send_unittest.py
@@ -87,10 +87,6 @@
          variant             string "gateway.2wire.net"
       )
       dict entry(
-         string "LinkMonitorTechnologies"
-         variant             string "wifi"
-      )
-      dict entry(
          string "NoAutoConnectTechnologies"
          variant             string ""
       )
@@ -167,7 +163,6 @@
     'EnabledTechnologies': ['ethernet'],
     'HostName': '',
     'IgnoredDNSSearchPaths': 'gateway.2wire.net',
-    'LinkMonitorTechnologies': 'wifi',
     'NoAutoConnectTechnologies': '',
     'OfflineMode': False,
     'PortalCheckInterval': 30,