rm libbinderthreadstate

Empty, since the functionality was moved to libbinder/libhwbinder to
remove extra lib dependency.

Bug: 148692216
Test: N/A
Change-Id: Ie94f0a7f64213c2265b4207db2e5b55b5bdd01a1
diff --git a/libs/binderthreadstate/Android.bp b/libs/binderthreadstate/Android.bp
index 4655e1d..c186110 100644
--- a/libs/binderthreadstate/Android.bp
+++ b/libs/binderthreadstate/Android.bp
@@ -63,15 +63,3 @@
     ],
     require_root: true,
 }
-
-// TODO(b/148692216): remove empty lib
-cc_library {
-    name: "libbinderthreadstate",
-    recovery_available: true,
-    vendor_available: false,
-    vndk: {
-        enabled: true,
-        support_system_process: true,
-    },
-    host_supported: true,
-}