Migrate to run the new CtsIcu4cTestCases in presubmit - Attempt 2

CtsIcu4cTestCases contains both cintltst and intltest, and thus we can
just run CtsIcu4cTestCases.

Bug: 160350521
Test: atest CtsIcu4cTestCases
Change-Id: If693f902c662846d9e2d35ac4abefbecb440d220
diff --git a/TEST_MAPPING b/TEST_MAPPING
index f476372..de82f9f 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,10 +1,7 @@
 {
   "presubmit": [
     {
-      "name": "intltest_test"
-    },
-    {
-      "name": "cintltst_test"
+      "name": "CtsIcu4cTestCases"
     },
     {
       "name": "minikin_tests"