Migrate 25 crates to monorepo.

combine
command-fds
const-oid
coset
crc32fast
criterion
criterion-plot
crossbeam-channel
crossbeam-deque
crossbeam-epoch
crossbeam-queue
crossbeam-utils
darling_core
darling_macro
dashmap
data-encoding
der
der_derive
derive_arbitrary
displaydoc
document-features
downcast-rs
drm
either
enumn

Bug: 339424309
Test: treehugger
Change-Id: Ib86c3393e180f52ec783944574caa00c54369663
diff --git a/Android.bp b/Android.bp
index 97ce693..96beb97 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,93 +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_downcast-rs_license"],
-}
-
-license {
-    name: "external_rust_crates_downcast-rs_license",
-    visibility: [":__subpackages__"],
-    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
-    license_text: ["LICENSE"],
-}
-
-rust_test {
-    name: "downcast-rs_test_src_lib",
-    host_supported: true,
-    crate_name: "downcast_rs",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.2.0",
-    crate_root: "src/lib.rs",
-    test_suites: ["general-tests"],
-    auto_gen_config: true,
-    test_options: {
-        unit_test: true,
-    },
-    edition: "2015",
-    features: [
-        "default",
-        "std",
-    ],
-}
-
-rust_test {
-    name: "downcast-rs_test_tests_import_via_macro_use",
-    host_supported: true,
-    crate_name: "import_via_macro_use",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.2.0",
-    crate_root: "tests/import_via_macro_use.rs",
-    test_suites: ["general-tests"],
-    auto_gen_config: true,
-    test_options: {
-        unit_test: true,
-    },
-    edition: "2015",
-    features: [
-        "default",
-        "std",
-    ],
-    rustlibs: ["libdowncast_rs"],
-}
-
-rust_test {
-    name: "downcast-rs_test_tests_use_via_namespace",
-    host_supported: true,
-    crate_name: "use_via_namespace",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.2.0",
-    crate_root: "tests/use_via_namespace.rs",
-    test_suites: ["general-tests"],
-    auto_gen_config: true,
-    test_options: {
-        unit_test: true,
-    },
-    edition: "2015",
-    features: [
-        "default",
-        "std",
-    ],
-    rustlibs: ["libdowncast_rs"],
-}
-
-rust_library {
-    name: "libdowncast_rs",
-    host_supported: true,
-    crate_name: "downcast_rs",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.2.0",
-    crate_root: "src/lib.rs",
-    edition: "2015",
-    features: [
-        "default",
-        "std",
-    ],
-    apex_available: [
-        "//apex_available:platform",
-        "//apex_available:anyapex",
-    ],
-    product_available: true,
-    vendor_available: true,
-    min_sdk_version: "29",
-}
+// This crate has been migrated to external/rust/android-crates-io.
diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index 0f48374..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,51 +0,0 @@
-// Generated by update_crate_tests.py for tests that depend on this crate.
-{
-  "imports": [
-    {
-      "path": "packages/modules/Virtualization/authfs"
-    },
-    {
-      "path": "packages/modules/Virtualization/microdroid_manager"
-    },
-    {
-      "path": "packages/modules/Virtualization/virtualizationmanager"
-    },
-    {
-      "path": "packages/modules/Virtualization/vm"
-    },
-    {
-      "path": "system/keymint/hal"
-    },
-    {
-      "path": "system/security/diced"
-    },
-    {
-      "path": "system/security/keystore2"
-    },
-    {
-      "path": "system/security/keystore2/legacykeystore"
-    }
-  ],
-  "presubmit": [
-    {
-      "name": "downcast-rs_test_src_lib"
-    },
-    {
-      "name": "downcast-rs_test_tests_import_via_macro_use"
-    },
-    {
-      "name": "downcast-rs_test_tests_use_via_namespace"
-    }
-  ],
-  "presubmit-rust": [
-    {
-      "name": "downcast-rs_test_src_lib"
-    },
-    {
-      "name": "downcast-rs_test_tests_import_via_macro_use"
-    },
-    {
-      "name": "downcast-rs_test_tests_use_via_namespace"
-    }
-  ]
-}
diff --git a/cargo_embargo.json b/cargo_embargo.json
deleted file mode 100644
index 16616e0..0000000
--- a/cargo_embargo.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "min_sdk_version": "29",
-  "run_cargo": false,
-  "tests": true
-}