Migrate 20 crates to monorepo

oneshot-uniffi
minimal-lexical
num_enum
num_enum_derive
num-complex
num-derive
paste
pin-utils
predicates
protobuf-parse
protobuf-support
quote
remain
rustc-demangle-capi
rustix
shared_child
thiserror-impl
threadpool
tikv-jemalloc-sys
tonic

Bug: http://b/339424309
Test: treehugger
Change-Id: I6daffb58b45b334e3780a321abf0baee716db198

Android.bp

diff --git a/Android.bp b/Android.bp
index a580b05..96beb97 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,22 +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_paste_license"],
-}
-
-license {
-    name: "external_rust_crates_paste_license",
-    visibility: [":__subpackages__"],
-    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
-    license_text: ["LICENSE"],
-}
-
-rust_proc_macro {
-    name: "libpaste",
-    crate_name: "paste",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.0.14",
-    crate_root: "src/lib.rs",
-    edition: "2018",
-}
+// 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 fd5e1fe..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,11 +0,0 @@
-// Generated by update_crate_tests.py for tests that depend on this crate.
-{
-  "imports": [
-    {
-      "path": "external/rust/crates/gdbstub_arch"
-    },
-    {
-      "path": "packages/modules/Virtualization/virtualizationmanager"
-    }
-  ]
-}

cargo_embargo.json

diff --git a/cargo_embargo.json b/cargo_embargo.json
deleted file mode 100644
index 4a1ba09..0000000
--- a/cargo_embargo.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "package": {
-    "paste": {
-      "device_supported": false
-    }
-  },
-  "run_cargo": false
-}