Remove usage of grep_includes (#2072)

Author: kotlaja

rust/private/rust.bzl

@@ -828,12 +828,7 @@ _rust_test_attrs = dict({
             E.g. `bazel test //src:rust_test --test_arg=foo::test::test_fn`.
         """),
     ),
-    "_grep_includes": attr.label(
-        allow_single_file = True,
-        cfg = "exec",
-        default = Label("@bazel_tools//tools/cpp:grep-includes"),
-        executable = True,
-    ),
+    "_use_grep_includes": attr.bool(default = True),
 }.items() + _coverage_attrs.items() + _experimental_use_cc_common_link_attrs.items())
 
 _common_providers = [
@@ -955,12 +950,7 @@ rust_shared_library = rule(
     implementation = _rust_shared_library_impl,
     attrs = dict(
         _common_attrs.items() + _experimental_use_cc_common_link_attrs.items() + {
-            "_grep_includes": attr.label(
-                allow_single_file = True,
-                cfg = "exec",
-                default = Label("@bazel_tools//tools/cpp:grep-includes"),
-                executable = True,
-            ),
+            "_use_grep_includes": attr.bool(default = True),
         }.items(),
     ),
     fragments = ["cpp"],
@@ -1052,12 +1042,7 @@ _rust_binary_attrs = dict({
         default = False,
     ),
     "stamp": _stamp_attribute(default_value = -1),
-    "_grep_includes": attr.label(
-        allow_single_file = True,
-        cfg = "exec",
-        default = Label("@bazel_tools//tools/cpp:grep-includes"),
-        executable = True,
-    ),
+    "_use_grep_includes": attr.bool(default = True),
 }.items() + _experimental_use_cc_common_link_attrs.items())
 
 rust_binary = rule(

rust/private/rustc.bzl

@@ -735,7 +735,6 @@ def collect_inputs(
                 actions = ctx.actions,
                 cc_toolchain = cc_toolchain,
                 feature_configuration = feature_configuration,
-                grep_includes = ctx.file._grep_includes,
                 source_file = linkstamp.file(),
                 output_file = linkstamp_out,
                 compilation_inputs = linkstamp.hdrs(),
@@ -1125,7 +1124,7 @@ def rustc_compile_action(
         aliases = crate_info.aliases,
         are_linkstamps_supported = _are_linkstamps_supported(
             feature_configuration = feature_configuration,
-            has_grep_includes = hasattr(ctx.attr, "_grep_includes"),
+            has_grep_includes = hasattr(ctx.attr, "_use_grep_includes"),
         ),
     )
 
@@ -1369,7 +1368,6 @@ def rustc_compile_action(
             linking_contexts = linking_contexts,
             compilation_outputs = compilation_outputs,
             name = output_relative_to_package,
-            grep_includes = ctx.file._grep_includes,
             stamp = ctx.attr.stamp,
             output_type = "executable" if crate_info.type == "bin" else "dynamic_library",
         )