Migrate manifest_*_test out of test mapping

Unit tests do not require an explicit TEST_MAPPING config

Change-Id: Ieccebc78a26b9555803a2278e2962d0b388a6957
Test: presubmit
Bug: 183209529
diff --git a/scripts/Android.bp b/scripts/Android.bp
index 310c959..9e8a602 100644
--- a/scripts/Android.bp
+++ b/scripts/Android.bp
@@ -55,7 +55,9 @@
     libs: [
         "manifest_utils",
     ],
-    test_suites: ["general-tests"],
+    test_options: {
+        unit_test: true,
+    },
 }
 
 python_library_host {
@@ -110,7 +112,9 @@
     libs: [
         "manifest_utils",
     ],
-    test_suites: ["general-tests"],
+    test_options: {
+        unit_test: true,
+    },
 }
 
 python_binary_host {
diff --git a/scripts/TEST_MAPPING b/scripts/TEST_MAPPING
deleted file mode 100644
index 1b0a229..0000000
--- a/scripts/TEST_MAPPING
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "presubmit" : [
-    {
-      "name": "manifest_check_test",
-      "host": true
-    },
-    {
-      "name": "manifest_fixer_test",
-      "host": true
-    }    
-  ]
-}