Use of gerrit_plugin and gerrit_plugin_tests rules from bazlets

Change-Id: I817cf08319ede06344247fbf44bb0d21376304c3

BUILD

diff --git a/BUILD b/BUILD
index f9ec196..8901595 100644
--- a/BUILD
+++ b/BUILD
@@ -1,5 +1,4 @@
-load("//tools/bzl:junit.bzl", "junit_tests")
-load("//tools/bzl:plugin.bzl", "PLUGIN_DEPS", "PLUGIN_TEST_DEPS", "gerrit_plugin")
+load("@com_googlesource_gerrit_bazlets//:gerrit_plugin.bzl", "gerrit_plugin", "gerrit_plugin_tests")
 
 gerrit_plugin(
     name = "singleusergroup",
@@ -11,11 +10,10 @@
     resources = glob(["src/main/resources/**/*"]),
 )
 
-junit_tests(
+gerrit_plugin_tests(
     name = "singleusergroup_tests",
     srcs = glob(["src/test/java/**/*Test.java"]),
     tags = ["singleusergroup"],
     visibility = ["//visibility:public"],
     runtime_deps = [":singleusergroup__plugin"],
-    deps = PLUGIN_TEST_DEPS + PLUGIN_DEPS,
 )