chore(ci): remove third_party/bitcoin-core (#1603)

This PR replaces `third_party/bitcoin-core` by downloading the
`bitcoind` binary from the Bitcoin core release.

WORKSPACE.bazel

@@ -319,12 +319,6 @@ load("@rules_pkg//:deps.bzl", "rules_pkg_dependencies")
 
 rules_pkg_dependencies()
 
-# Bitcoin core
-
-load("//third_party/bitcoin-core:bitcoin-core_repository.bzl", "bitcoin_core_repository")
-
-bitcoin_core_repository()
-
 # Third party dependencies that require special treatment
 
 lmdb_repository()
@@ -959,3 +953,20 @@ http_file(
 load("//rs/tests:kubeconfig.bzl", "kubeconfig")
 
 kubeconfig()
+
+http_archive(
+    name = "bitcoin_core",
+    build_file_content = """
+package(default_visibility = ["//visibility:public"])
+filegroup(
+    name = "bitcoind",
+    srcs = ["bin/bitcoind"],
+)
+""",
+    sha256 = "2a6974c5486f528793c79d42694b5987401e4a43c97f62b1383abf35bcee44a8",
+    strip_prefix = "bitcoin-27.0",
+    urls = [
+        "https://bitcoin.org/bin/bitcoin-core-27.0/bitcoin-27.0-x86_64-linux-gnu.tar.gz",
+        "https://bitcoincore.org/bin/bitcoin-core-27.0/bitcoin-27.0-x86_64-linux-gnu.tar.gz",
+    ],
+)

rs/bitcoin/adapter/BUILD.bazel

@@ -98,15 +98,14 @@ rust_test_suite(
     aliases = ALIASES,
     data = [
         # Keep sorted.
-        "@bitcoin-core//:bitcoin-core",
-        "@bitcoin-core//:bitcoind",
         "@bitcoin_adapter_mainnet_blocks//file",
         "@bitcoin_adapter_mainnet_headers//file",
         "@bitcoin_adapter_testnet_blocks//file",
         "@bitcoin_adapter_testnet_headers//file",
+        "@bitcoin_core//:bitcoind",
     ],
     env = {
-        "BITCOIN_CORE_PATH": "$(rootpath @bitcoin-core//:bitcoind)",
+        "BITCOIN_CORE_PATH": "$(rootpath @bitcoin_core//:bitcoind)",
         "HEADERS_DATA_PATH": "$(rootpath @bitcoin_adapter_mainnet_headers//file)",
         "BLOCKS_DATA_PATH": "$(rootpath @bitcoin_adapter_mainnet_blocks//file)",
         "TESTNET_HEADERS_DATA_PATH": "$(rootpath @bitcoin_adapter_testnet_headers//file)",