wasm: migrate to V8's native Bazel rules.

.bazelrc

@@ -71,6 +71,7 @@ build:asan --linkopt -fsanitize=address,undefined
 build:asan --copt -fno-sanitize=vptr,function
 build:asan --linkopt -fno-sanitize=vptr,function
 build:asan --copt -DADDRESS_SANITIZER=1
+build:asan --copt -DUNDEFINED_SANITIZER=1
 build:asan --copt -D__SANITIZE_ADDRESS__
 build:asan --test_env=ASAN_OPTIONS=handle_abort=1:allow_addr2line=true:check_initialization_order=true:strict_init_order=true:detect_odr_violation=1
 build:asan --test_env=UBSAN_OPTIONS=halt_on_error=true:print_stacktrace=1
@@ -109,6 +110,7 @@ build:clang-tsan --define ENVOY_CONFIG_TSAN=1
 build:clang-tsan --copt -fsanitize=thread
 build:clang-tsan --linkopt -fsanitize=thread
 build:clang-tsan --linkopt -fuse-ld=lld
+build:clang-tsan --copt -DTHREAD_SANITIZER=1
 build:clang-tsan --build_tag_filters=-no_san,-no_tsan
 build:clang-tsan --test_tag_filters=-no_san,-no_tsan
 # Needed due to https://github.com/libevent/libevent/issues/777
@@ -127,6 +129,7 @@ build:clang-msan --copt -fsanitize=memory
 build:clang-msan --linkopt -fsanitize=memory
 build:clang-msan --linkopt -fuse-ld=lld
 build:clang-msan --copt -fsanitize-memory-track-origins=2
+build:clang-msan --copt -DMEMORY_SANITIZER=1
 build:clang-msan --test_env=MSAN_SYMBOLIZER_PATH
 # MSAN needs -O1 to get reasonable performance.
 build:clang-msan --copt -O1

bazel/dependency_imports.bzl

@@ -1,6 +1,5 @@
 load("@rules_foreign_cc//foreign_cc:repositories.bzl", "rules_foreign_cc_dependencies")
 load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
-load("@bazel_toolchains//rules/exec_properties:exec_properties.bzl", "create_rbe_exec_properties_dict", "custom_exec_properties")
 load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies", "go_repository")
 load("@build_bazel_rules_apple//apple:repositories.bzl", "apple_rules_dependencies")
 load("@rules_fuzzing//fuzzing:repositories.bzl", "rules_fuzzing_dependencies")
@@ -33,13 +32,6 @@ def envoy_dependency_imports(go_version = GO_VERSION):
     rules_cc_dependencies()
     rules_cc_toolchains()
 
-    custom_exec_properties(
-        name = "envoy_large_machine_exec_property",
-        constants = {
-            "LARGE_MACHINE": create_rbe_exec_properties_dict(labels = dict(size = "large")),
-        },
-    )
-
     # These dependencies, like most of the Go in this repository, exist only for the API.
     go_repository(
         name = "org_golang_google_grpc",