Revert "Add minimal setup for Go codegen in Android.bp."

This reverts commit 9f7b6babe1.

Reason for revert: No longer appears needed as 1) number of diffs was greatly reduced via cc_default 2) build configs got simpler with switching to platform zlib. No recent conflicts introduced by build scripts

Original change's description:
> Add minimal setup for Go codegen in Android.bp.
>
> Based on Cody's http://ag/19603310.
>
> Only adds libEGL_angle_codegen to libEGL_angle and is a no-op.
>
> Tested in an aosp checkout. Hopefully this doesn't cause merge conflicts
> with internal master as all diffs are close to the top of the file.
>
> Android.bp diff: https://paste.googleplex.com/6626641357832192
>
> Bug: b/242929755
> Change-Id: I6d7ac9f3dd502074c41838bd1aa10075a8c99145
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3876890
> Commit-Queue: Roman Lavrov <romanl@google.com>
> Reviewed-by: Cody Northrop <cnorthrop@google.com>
> Reviewed-by: Geoff Lang <geofflang@chromium.org>

Bug: b/242929755
Change-Id: Id4cbdf68e9704138396ee1bef7a4f1edef3f50cf
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4685320
Commit-Queue: Roman Lavrov <romanl@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

scripts/angle_android_codegen.go

@@ -1,41 +0,0 @@
-//
-// Copyright 2022 The ANGLE Project Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-package angle_android_codegen
-
-import (
-    "android/soong/android"
-    "android/soong/cc"
-)
-
-func init() {
-    android.RegisterModuleType(
-        "angle_android_codegen", angle_android_codegen_DefaultsFactory)
-}
-
-// Values passed in from Android.bp
-type angle_android_codegen_Properties struct {
-}
-
-func angle_android_codegen_Defaults(g *angle_android_codegen_Properties) func(ctx android.LoadHookContext) {
-    return func(ctx android.LoadHookContext) {
-
-        // Structure to write out new values
-        type props struct {
-        }
-
-        p := &props{}
-
-        ctx.AppendProperties(p)
-    }
-}
-
-func angle_android_codegen_DefaultsFactory() android.Module {
-    module := cc.DefaultsFactory()
-    props := &angle_android_codegen_Properties{}
-    module.AddProperties(props)
-    android.AddLoadHook(module, angle_android_codegen_Defaults(props))
-    return module
-}

scripts/generate_android_bp.py

@@ -20,10 +20,6 @@ ROOT_TARGETS = [
     "//:libEGL",
 ]
 
-CODEGEN_TARGETS = [
-    "//:libEGL",
-]
-
 MIN_SDK_VERSION = '28'
 TARGET_SDK_VERSION = '33'
 STL = 'libc++_static'
@@ -226,10 +222,6 @@ def gn_deps_to_blueprint_deps(abi, target, build_info):
     if 'deps' not in target_info:
         return static_libs, defaults
 
-    if target in CODEGEN_TARGETS:
-        target_name = gn_target_to_blueprint_target(target, target_info)
-        defaults.append(target_name + '_android_codegen')
-
     for dep in target_info['deps']:
         if dep not in target_blockist and (not dep.startswith('//third_party') or any(
                 dep.startswith(substring) for substring in third_party_target_allowlist)):
@@ -582,17 +574,6 @@ def main():
 
     blueprint_targets = []
 
-    blueprint_targets.append(('bootstrap_go_package', {
-        'name': 'soong-angle-codegen',
-        'pkgPath': 'android/soong/external/angle',
-        'deps': [
-            'blueprint', 'blueprint-pathtools', 'soong', 'soong-android', 'soong-cc',
-            'soong-genrule'
-        ],
-        'srcs': ['scripts/angle_android_codegen.go'],
-        'pluginFor': ['soong_build'],
-    }))
-
     blueprint_targets.append((
         'cc_defaults',
         {
@@ -609,12 +590,7 @@ def main():
         }))
 
     for target in reversed(targets_to_write.keys()):
-        blueprint_type, bp = gn_target_to_blueprint(target, build_info)
-        if target in CODEGEN_TARGETS:
-            blueprint_targets.append(('angle_android_codegen', {
-                'name': bp['name'] + '_android_codegen',
-            }))
-        blueprint_targets.append((blueprint_type, bp))
+        blueprint_targets.append(gn_target_to_blueprint(target, build_info))
 
     # Add license build rules
     blueprint_targets.append(('package', {