remove usage of host_fragments in google3/third_party/crubit/rs_bindings_from_cc/bazel_support/with_cc_toolchain_flags.bzl

PiperOrigin-RevId: 583050032
Change-Id: I7154eaab9084cdbcdb7add6bb87167f58c740e73
diff --git a/rs_bindings_from_cc/bazel_support/with_cc_toolchain_flags.bzl b/rs_bindings_from_cc/bazel_support/with_cc_toolchain_flags.bzl
index 93a4772..4783f3b 100644
--- a/rs_bindings_from_cc/bazel_support/with_cc_toolchain_flags.bzl
+++ b/rs_bindings_from_cc/bazel_support/with_cc_toolchain_flags.bzl
@@ -119,7 +119,6 @@
     },
     executable = True,
     fragments = ["cpp"],
-    host_fragments = ["cpp"],
     toolchains = [
         "@rules_rust//rust:toolchain",
         "@bazel_tools//tools/cpp:toolchain_type",