Revert "Suppress -fcoroutines-ts deprecation warning"

Revert submission 2446165-update-clang-r487747

Reason for revert: DroidMonitor-triggered revert due to breakage bug b/271252582 and b/271243811

Reverted changes: /q/submissionid:2446165-update-clang-r487747

Bug: 271252582
Bug: 271243811
Change-Id: Ib2f5cafe2bcb0375bfd4a7933419995a6737b86e
diff --git a/Android.bp b/Android.bp
index 748973d..5191017 100644
--- a/Android.bp
+++ b/Android.bp
@@ -252,7 +252,6 @@
         "-fsized-deallocation",
         "-fexceptions",
         "-fcoroutines-ts",
-        "-Wno-deprecated-experimental-coroutine",
         "-Wno-format-zero-length",
         "-Wno-implicit-fallthrough",
         "-Wno-non-virtual-dtor",