Migrate 25 crates to monorepo.

pin-project
pin-project-internal
pin-project-lite
pkcs1
pkcs8
plotters-backend
plotters-svg
ppv-lite86
predicates-core
predicates-tree
prettyplease
proc-macro2
rand
rand_chacha
rand_core
rand_xorshift
rayon
rayon-core
regex
regex-syntax
rusqlite
rustc-demangle
rustc-hash
rustversion
scopeguard

Bug: 339424309
Test: treehugger
Change-Id: I3ea704c11aa167402044621b84cb19e445b9a4aa
diff --git a/Android.bp b/Android.bp
index c264815..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_rayon_license"],
-}
-
-license {
-    name: "external_rust_crates_rayon_license",
-    visibility: [":__subpackages__"],
-    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
-    license_text: ["LICENSE"],
-}
-
-rust_library {
-    name: "librayon",
-    host_supported: true,
-    crate_name: "rayon",
-    cargo_env_compat: true,
-    cargo_pkg_version: "1.8.1",
-    crate_root: "src/lib.rs",
-    edition: "2021",
-    rustlibs: [
-        "libeither",
-        "librayon_core",
-    ],
-    apex_available: [
-        "//apex_available:platform",
-        "//apex_available:anyapex",
-    ],
-    product_available: true,
-    vendor_available: true,
-}
+// This crate has been migrated to external/rust/android-crates-io.
diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index 55384f0..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,20 +0,0 @@
-// Generated by update_crate_tests.py for tests that depend on this crate.
-{
-  "imports": [
-    {
-      "path": "external/rust/crates/base64"
-    },
-    {
-      "path": "external/rust/crates/hashbrown"
-    },
-    {
-      "path": "external/rust/crates/tinytemplate"
-    },
-    {
-      "path": "external/rust/crates/tinyvec"
-    },
-    {
-      "path": "external/rust/crates/unicode-xid"
-    }
-  ]
-}
diff --git a/cargo_embargo.json b/cargo_embargo.json
deleted file mode 100644
index cb908d7..0000000
--- a/cargo_embargo.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "run_cargo": false
-}