Remove --show-annotation FlaggedApi from flagged-apis-droidstubs

framework-connectivity-flagged-apis-droidstubs is used by
jarjar-rules-generator to avoid jarjaring flagged apis.
But, this usage of --show-annotation FlaggedApi in the flag is not
supported.
So this CL removes --show-annotation FlaggedApi.
As far as framework-connectivity-flagged-apis-droidstubs contains
flagged APIs, it's fine that this droidstubs also contains non-flagged
APIs.

Test: TH
Bug: 312408311
Change-Id: I2f1f5624d98873420c0c36ac6e31386102211045
diff --git a/thread/tests/cts/Android.bp b/thread/tests/cts/Android.bp
index 6862398..3cf31e5 100644
--- a/thread/tests/cts/Android.bp
+++ b/thread/tests/cts/Android.bp
@@ -45,7 +45,7 @@
     libs: [
         "android.test.base",
         "android.test.runner",
-        "framework-connectivity-flagged-apis"
+        "framework-connectivity-module-api-stubs-including-flagged"
     ],
     // Test coverage system runs on different devices. Need to
     // compile for all architectures.