Deprecate api bp2build of ndk_library and ndk_headers

To support export of NDK APIs in multi-tree, we added functionality to
generate Bazel targets of ndk related Soong module types. Since this use
case does not exist anymore, deprecate this to prevent bitrot

The removed code includes
- `ConvertWithApi2Build` implementation of these libraries, which
  generates the Bazel targets in the synthetic `api_bp2build` workspace
- (api) bp2build unit tests for these module types

Test: go build ./cc
Bug: 284029211
Change-Id: Id3278fa119e0ab87f31f39a3783197a81b655e43

cc/ndk_headers.go

@@ -19,10 +19,8 @@ import (
 	"path/filepath"
 
 	"github.com/google/blueprint"
-	"github.com/google/blueprint/proptools"
 
 	"android/soong/android"
-	"android/soong/bazel"
 )
 
 var (
@@ -81,7 +79,6 @@ type headerProperties struct {
 
 type headerModule struct {
 	android.ModuleBase
-	android.BazelModuleBase
 
 	properties headerProperties
 
@@ -147,39 +144,6 @@ func (m *headerModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	}
 }
 
-// TODO(b/243196151): Populate `system` and `arch` metadata
-type bazelCcApiHeadersAttributes struct {
-	Hdrs        bazel.LabelListAttribute
-	Include_dir *string
-}
-
-func createCcApiHeadersTarget(ctx android.TopDownMutatorContext, includes []string, excludes []string, include_dir *string) {
-	props := bazel.BazelTargetModuleProperties{
-		Rule_class:        "cc_api_headers",
-		Bzl_load_location: "//build/bazel/rules/apis:cc_api_contribution.bzl",
-	}
-	attrs := &bazelCcApiHeadersAttributes{
-		Hdrs: bazel.MakeLabelListAttribute(
-			android.BazelLabelForModuleSrcExcludes(
-				ctx,
-				includes,
-				excludes,
-			),
-		),
-		Include_dir: include_dir,
-	}
-	ctx.CreateBazelTargetModule(props, android.CommonAttributes{
-		Name: android.ApiContributionTargetName(ctx.ModuleName()),
-	}, attrs)
-}
-
-var _ android.ApiProvider = (*headerModule)(nil)
-
-func (h *headerModule) ConvertWithApiBp2build(ctx android.TopDownMutatorContext) {
-	// Generate `cc_api_headers` target for Multi-tree API export
-	createCcApiHeadersTarget(ctx, h.properties.Srcs, h.properties.Exclude_srcs, h.properties.From)
-}
-
 // ndk_headers installs the sets of ndk headers defined in the srcs property
 // to the sysroot base + "usr/include" + to directory + directory component.
 // ndk_headers requires the license file to be specified. Example:
@@ -226,7 +190,6 @@ type versionedHeaderProperties struct {
 // Note that this is really only built to handle bionic/libc/include.
 type versionedHeaderModule struct {
 	android.ModuleBase
-	android.BazelModuleBase
 
 	properties versionedHeaderProperties
 
@@ -264,15 +227,6 @@ func (m *versionedHeaderModule) GenerateAndroidBuildActions(ctx android.ModuleCo
 	processHeadersWithVersioner(ctx, fromSrcPath, toOutputPath, srcFiles, installPaths)
 }
 
-var _ android.ApiProvider = (*versionedHeaderModule)(nil)
-
-func (h *versionedHeaderModule) ConvertWithApiBp2build(ctx android.TopDownMutatorContext) {
-	// Glob all .h files under `From`
-	includePattern := headerGlobPattern(proptools.String(h.properties.From))
-	// Generate `cc_api_headers` target for Multi-tree API export
-	createCcApiHeadersTarget(ctx, []string{includePattern}, []string{}, h.properties.From)
-}
-
 func processHeadersWithVersioner(ctx android.ModuleContext, srcDir, outDir android.Path,
 	srcFiles android.Paths, installPaths []android.WritablePath) android.Path {
 	// The versioner depends on a dependencies directory to simplify determining include paths