Migrate 9 crates to monorepo.

matchit
flate2
vulkano
libfuzzer-sys
clang-sys
unicode-ident
jni
tokio-openssl
serde_yaml

Bug: http://b/339424309
Test: treehugger
Change-Id: I719167a345c2aee78894ed34f02a5724067372c1

Android.bp

diff --git a/Android.bp b/Android.bp
index 9356629..96beb97 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,56 +1 @@
-// This file is generated by cargo_embargo.
-// Do not modify this file because the changes will be overridden on upgrade.
-
-package {
-    default_applicable_licenses: ["external_rust_crates_clang-sys_license"],
-    default_team: "trendy_team_android_rust",
-}
-
-license {
-    name: "external_rust_crates_clang-sys_license",
-    visibility: [":__subpackages__"],
-    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
-    license_text: ["LICENSE"],
-}
-
-genrule {
-    name: "copy_clang-sys_build_out",
-    srcs: ["out/*"],
-    cmd: "cp $(in) $(genDir)",
-    out: [
-        "common.rs",
-        "dynamic.rs",
-        "macros.rs",
-    ],
-}
-
-rust_library_host {
-    name: "libclang_sys",
-    crate_name: "clang_sys",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.7.0",
-    crate_root: "src/lib.rs",
-    srcs: [":copy_clang-sys_build_out"],
-    edition: "2015",
-    features: [
-        "clang_10_0",
-        "clang_3_5",
-        "clang_3_6",
-        "clang_3_7",
-        "clang_3_8",
-        "clang_3_9",
-        "clang_4_0",
-        "clang_5_0",
-        "clang_6_0",
-        "clang_7_0",
-        "clang_8_0",
-        "clang_9_0",
-        "libloading",
-        "runtime",
-    ],
-    rustlibs: [
-        "libglob",
-        "liblibc",
-        "liblibloading",
-    ],
-}
+// This crate has been migrated to external/rust/android-crates-io.

TEST_MAPPING

diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index 23bbdf9..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,14 +0,0 @@
-// Generated by update_crate_tests.py for tests that depend on this crate.
-{
-  "imports": [
-    {
-      "path": "external/rust/crates/libsqlite3-sys"
-    },
-    {
-      "path": "system/security/keystore2"
-    },
-    {
-      "path": "system/security/keystore2/legacykeystore"
-    }
-  ]
-}

cargo_embargo.json

diff --git a/cargo_embargo.json b/cargo_embargo.json
deleted file mode 100644
index 9f9a4e9..0000000
--- a/cargo_embargo.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "features": [
-    "runtime",
-    "clang_10_0"
-  ],
-  "package": {
-    "clang-sys": {
-      "copy_out": true,
-      "device_supported": false
-    }
-  }
-}