Revert "Scaffolding for generation of intrinsics files."

This reverts commit 6c5db2afa69756f8f07efd942c88ad5b173fc738.

Reason for revert: Ran into issues integrating into all the required build environments.

Original change's description:
> Scaffolding for generation of intrinsics files.
>
> This CL sets up the basis for the intrinsic file generation. All of
> the GN and CMake pieces are setup, but they aren't hooked into the
> main build yet. That will be a followup which just enables the
> generation in order to allow easy reverting.
>
> Change-Id: Iccac59377076ed6ac66eeaf0be965be2f49bc738
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107981
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
> Reviewed-by: Ben Clayton <bclayton@google.com>
> Reviewed-by: Ryan Harrison <rharrison@chromium.org>

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: If289cd2769faea6466bcae68c3c58cf416b3567a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108421
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
diff --git a/generator/tint_gen_template.py b/generator/tint_gen_template.py
deleted file mode 100755
index d1df326..0000000
--- a/generator/tint_gen_template.py
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/usr/bin/env python3
-# Copyright 2022 The Dawn Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import argparse
-import os
-import subprocess
-import sys
-
-
-def run_generator():
-    parser = argparse.ArgumentParser(
-        description=
-        "Tint template generator for GN build. Use tools/run gen for non-GN build.",
-        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
-    )
-    parser.add_argument('--output',
-                        default='',
-                        type=str,
-                        help='Base output directory.')
-    parser.add_argument('--template',
-                        default='',
-                        type=str,
-                        help='Template to generate.')
-    args = parser.parse_args()
-
-    root = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')
-    go = os.path.join(root, "tools", "golang", "bin", "go")
-    if sys.platform == 'win32':
-        go += '.exe'
-
-    gen = os.path.join(root, "tools", "src", "cmd", "gen")
-    subprocess.check_call(
-        [go, "run", gen, "-o", args.output,
-         os.path.join(root, args.template)],
-        cwd=root)
-
-    return 0
-
-
-if __name__ == '__main__':
-    sys.exit(run_generator())
diff --git a/src/tint/BUILD.gn b/src/tint/BUILD.gn
index 067b4d4..97bffef 100644
--- a/src/tint/BUILD.gn
+++ b/src/tint/BUILD.gn
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import("//build_overrides/build.gni")
+
 import("../../tint_overrides_with_defaults.gni")
 
 if (tint_build_unittests) {
@@ -848,140 +849,6 @@
   public_deps = [ ":libtint_core_src" ]
 }
 
-# Template to help invoke code generator for tint template files.
-#
-# Variables:
-#   input: The prefix for the template to generate, does not include the .tmpl extension
-template("tint_intrinsic_generator") {
-  _sources = [
-    "${invoker.input}.tmpl",
-    "${tint_root_dir}/src/tint/intrinsics.def",
-  ]
-
-  _outputs = [ "${target_gen_dir}/${invoker.input}" ]
-
-  _script = "${tint_root_dir}/generator/tint_gen_template.py"
-  _args = [
-    "--output",
-    rebase_path(root_gen_dir),
-    "--template",
-    "src/tint/" + invoker.input + ".tmpl",
-  ]
-
-  action("${target_name}") {
-    script = _script
-    outputs = _outputs
-    sources = _sources
-    args = _args
-  }
-}
-
-# Template to help invoke code generator for tint template files for source files. By default this
-# will generate a `h` and `cc` build rule for the provided `input`
-#
-# Variables:
-#   input: The prefix for the template, minus the file extension and .tmpl
-#
-#   bench: set true to generate a bench template
-#
-#   test: set true to generate a test template
-template("tint_intrinsic_src_generator") {
-  tint_intrinsic_generator("${target_name}_h") {
-    input = "${invoker.input}.h"
-  }
-  tint_intrinsic_generator("${target_name}_cc") {
-    input = "${invoker.input}.cc"
-  }
-
-  if (defined(invoker.bench) && invoker.bench) {
-    tint_intrinsic_generator("${target_name}_bench") {
-      input = "${invoker.input}_bench.cc"
-    }
-  }
-  if (defined(invoker.test) && invoker.test) {
-    tint_intrinsic_generator("${target_name}_test") {
-      input = "${invoker.input}_test.cc"
-    }
-  }
-
-  source_set(target_name) {
-    deps = [
-      ":${target_name}_cc",
-      ":${target_name}_h",
-    ]
-
-    if (defined(invoker.bench) && invoker.bench) {
-      deps += [ ":${target_name}_bench" ]
-    }
-    if (defined(invoker.test) && invoker.test) {
-      deps += [ ":${target_name}_test" ]
-    }
-  }
-}
-
-tint_intrinsic_generator("tint_intrinsics_inl") {
-  input = "resolver/intrinsic_table.inl"
-}
-
-tint_intrinsic_src_generator("tint_init_conv_intrinsic") {
-  input = "resolver/init_conv_intrinsic"
-}
-
-tint_intrinsic_src_generator("tint_sem_builtin_type") {
-  input = "sem/builtin_type"
-}
-
-tint_intrinsic_src_generator("tint_sem_parameter_usage") {
-  input = "sem/parameter_usage"
-}
-
-tint_intrinsic_src_generator("tint_ast_extension") {
-  input = "ast/extension"
-  bench = true
-  test = true
-}
-
-tint_intrinsic_src_generator("tint_ast_access") {
-  input = "ast/access"
-}
-
-tint_intrinsic_src_generator("tint_ast_builtin_value") {
-  input = "ast/builtin_value"
-  bench = true
-  test = true
-}
-
-tint_intrinsic_src_generator("tint_ast_texel_format") {
-  input = "ast/texel_format"
-  bench = true
-  test = true
-}
-
-tint_intrinsic_src_generator("tint_ast_address_space") {
-  input = "ast/address_space"
-  bench = true
-  test = true
-}
-
-tint_intrinsic_src_generator("tint_ast_interpolate_attribute") {
-  input = "ast/interpolate_attribute"
-}
-
-libtint_source_set("tint_gen_deps") {
-  deps = [
-    ":tint_ast_access",
-    ":tint_ast_address_space",
-    ":tint_ast_builtin_value",
-    ":tint_ast_extension",
-    ":tint_ast_interpolate_attribute",
-    ":tint_ast_texel_format",
-    ":tint_init_conv_intrinsic",
-    ":tint_intrinsics_inl",
-    ":tint_sem_builtin_type",
-    ":tint_sem_parameter_usage",
-  ]
-}
-
 source_set("libtint") {
   public_deps = [ ":libtint_core_src" ]