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: I17914270d54179704be215bd22999def297cac19
diff --git a/Android.bp b/Android.bp
index 19da996..96beb97 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,33 +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_displaydoc_license"],
-}
-
-license {
-    name: "external_rust_crates_displaydoc_license",
-    visibility: [":__subpackages__"],
-    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
-    license_text: ["LICENSE"],
-}
-
-rust_proc_macro {
-    name: "libdisplaydoc",
-    crate_name: "displaydoc",
-    cargo_env_compat: true,
-    cargo_pkg_version: "0.2.4",
-    crate_root: "src/lib.rs",
-    edition: "2018",
-    features: [
-        "default",
-        "std",
-    ],
-    rustlibs: [
-        "libproc_macro2",
-        "libquote",
-        "libsyn",
-    ],
-    product_available: true,
-    vendor_available: true,
-}
+// This crate has been migrated to external/rust/android-crates-io.
diff --git a/cargo_embargo.json b/cargo_embargo.json
deleted file mode 100644
index fca634f..0000000
--- a/cargo_embargo.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "run_cargo": false
-}