Native API Council asked that we remove the C++ class from the public header.

The API is simple enough, so just reimplement everything using the
C API directly.

Bug: 148940365
Test: treehugger
Change-Id: I0a75744e975e8d3c2a557e533eacd03200388ddc
diff --git a/libs/incident/TEST_MAPPING b/libs/incident/TEST_MAPPING
new file mode 100644
index 0000000..59ebe76
--- /dev/null
+++ b/libs/incident/TEST_MAPPING
@@ -0,0 +1,10 @@
+{
+  "presubmit": [
+    {
+      "name": "libincident_test"
+    },
+    {
+      "name": "GtsLibIncidentTests"
+    }
+  ]
+}