adbd: don't use libc++_static.

We have dependencies that use libc++_shared, which results in ODR
violation manifesting as host adbd crashing on launch in libc++ locale
initialization.

Test: adbd on host
Change-Id: I6c039b325308fb8c36dfe5c1d090ff4ebe9e3433

adb/Android.bp

@@ -593,7 +593,6 @@ cc_library {
 cc_binary {
     name: "adbd",
     defaults: ["adbd_defaults", "host_adbd_supported", "libadbd_binary_dependencies"],
-    stl: "libc++_static",
     recovery_available: true,
     apex_available: ["com.android.adbd"],