[rules,autogen] Remove autogen_hjson_{c,rust}_header

Those rules are now unused

Signed-off-by: Amaury Pouly <[email protected]>

rules/autogen.bzl

@@ -12,82 +12,6 @@ used by the OpenTitan build, such as register definition files generated
 from hjson register descriptions.
 """
 
-def _hjson_c_header(ctx):
-    output_stem = (ctx.attr.output_stem if ctx.attr.output_stem else ctx.label.name.replace("_c_", "_"))
-    header = ctx.actions.declare_file("{}.h".format(output_stem))
-    node = []
-    if ctx.attr.node:
-        node.append("--node={}".format(ctx.attr.node))
-
-    arguments = [
-        "-D",
-        "-q",
-        "-o",
-        header.path,
-    ] + node + [src.path for src in ctx.files.srcs]
-
-    # `inputs = ctx.files.srcs` will create `inputs` as an immutable list
-    # so need to unpack like this before appending the alias later
-    inputs = list(ctx.files.srcs)
-
-    # add path to an alias path if it's needed
-    if ctx.attr.alias:
-        alias = ctx.file.alias
-
-        # add the alias argument
-        arguments.extend([
-            "--alias",
-            alias.path,
-        ])
-
-        # add the alias as an input file
-        inputs.append(alias)
-
-    ctx.actions.run(
-        outputs = [header],
-        inputs = inputs,
-        arguments = arguments,
-        executable = ctx.executable._regtool,
-    )
-
-    return [
-        CcInfo(compilation_context = cc_common.create_compilation_context(
-            includes = depset([header.dirname]),
-            headers = depset([header]),
-        )),
-        DefaultInfo(files = depset([header])),
-        OutputGroupInfo(
-            header = depset([header]),
-        ),
-    ]
-
-autogen_hjson_c_header = rule(
-    implementation = _hjson_c_header,
-    attrs = {
-        "srcs": attr.label_list(allow_files = True),
-        "node": attr.string(
-            doc = "Register block node to generate",
-        ),
-        "alias": attr.label(
-            mandatory = False,
-            allow_single_file = True,
-            doc = "A path to an alias file",
-        ),
-        "output_stem": attr.string(
-            doc = """
-                The name of the output file with no suffix.
-                This is optional, and if not given it will be set to the
-                target name replacing "_c_" by "_".
-                """,
-        ),
-        "_regtool": attr.label(
-            default = "//util:regtool",
-            executable = True,
-            cfg = "exec",
-        ),
-    },
-)
-
 def _opentitan_ip_c_header_impl(ctx):
     header = ctx.actions.declare_file("{}_regs.h".format(ctx.attr.ip))
     top = ctx.attr.top[OpenTitanTopInfo]
@@ -181,59 +105,6 @@ opentitan_ip_rust_header = rule(
     } | stamp_attr(-1, "//rules:stamp_flag"),
 )
 
-def _hjson_rust_header(ctx):
-    node = []
-    if ctx.attr.node:
-        node.append("--node={}".format(ctx.attr.node))
-    stamp_args = []
-    stamp_files = []
-    if stamping_enabled(ctx):
-        stamp_files = [ctx.version_file]
-        stamp_args.append("--version-stamp={}".format(ctx.version_file.path))
-
-    output_stem = (ctx.attr.output_stem if ctx.attr.output_stem else ctx.label.name.replace("_rust_", "_"))
-    tock = ctx.actions.declare_file("{}.rs".format(output_stem))
-    ctx.actions.run(
-        outputs = [tock],
-        inputs = ctx.files.srcs + [ctx.executable._regtool] + stamp_files,
-        arguments = [
-            "--tock",
-            "-q",
-            "-o",
-            tock.path,
-        ] + stamp_args + node + [src.path for src in ctx.files.srcs],
-        executable = ctx.executable._regtool,
-    )
-
-    return [
-        DefaultInfo(files = depset([tock])),
-        OutputGroupInfo(
-            tock = depset([tock]),
-        ),
-    ]
-
-autogen_hjson_rust_header = rule(
-    implementation = _hjson_rust_header,
-    attrs = {
-        "srcs": attr.label_list(allow_files = True),
-        "node": attr.string(
-            doc = "Register block node to generate",
-        ),
-        "output_stem": attr.string(
-            doc = """
-                The name of the output file with no suffix.
-                This is optional, and if not given it will be set to the
-                target name replacing "_rust_" by "_".
-                """,
-        ),
-        "_regtool": attr.label(
-            default = "//util:regtool",
-            executable = True,
-            cfg = "exec",
-        ),
-    } | stamp_attr(-1, "//rules:stamp_flag"),
-)
-
 def _chip_info_src(ctx):
     stamp_args = []
     stamp_files = []