Upgrade socket2 to 0.4.7

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update rust/crates/socket2
For more info, check https://cs.android.com/android/platform/superproject/+/master:tools/external_updater/README.md

Test: TreeHugger
Change-Id: I0b7b8be5c9c11a02a4ddb1eb24cc5cc7547957b1
diff --git a/Android.bp b/Android.bp
index 8afbaff..4d34996 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,8 +1,6 @@
 // This file is generated by cargo2android.py --config cargo2android.json.
 // Do not modify this file as changes will be overridden on upgrade.
 
-
-
 package {
     default_applicable_licenses: ["external_rust_crates_socket2_license"],
 }
@@ -41,11 +39,10 @@
 
 rust_library {
     name: "libsocket2",
-    // has rustc warnings
     host_supported: true,
     crate_name: "socket2",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.4.4",
+    cargo_pkg_version: "0.4.7",
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: ["all"],