Split out the connectivity API surface

Split out connectivity APIs to connectivity module directories. This
prepares future move of the connectivity code into a mainline module,
but still keeps it implemented by framework-minus-apex for now: the API
stubs are moved to framework-connectivity.stubs, but the implementation
on device remains in the same place.

This allows moving the connectivity code in/out of APEX with minimal
changes.

BYPASS_INCLUSIVE_LANGUAGE_REASON=Moving files, can't modify released API

Bug: 171540887
Test: device boots, connectivity working

Change-Id: I21c42f032efa6c10e36c749df3183ce9679303a7
diff --git a/framework/api/removed.txt b/framework/api/removed.txt
new file mode 100644
index 0000000..303a1e6
--- /dev/null
+++ b/framework/api/removed.txt
@@ -0,0 +1,11 @@
+// Signature format: 2.0
+package android.net {
+
+  public class ConnectivityManager {
+    method @Deprecated public boolean requestRouteToHost(int, int);
+    method @Deprecated public int startUsingNetworkFeature(int, String);
+    method @Deprecated public int stopUsingNetworkFeature(int, String);
+  }
+
+}
+