Revert "Add sdk mutator for native modules"

Revert submission 1242911-sdk_version_variant

Reason for revert: b/153394225
Reverted Changes:
Ife99745fb:Use libnativewindow for platform variant of libagq...
I1bae84c43:Use libnativewindow for platform variant of androi...
I6e6021ed3:Use stl to depend on libc++
Ife99745fb:Use libnativewindow for platform variant of libRSS...
I2c9f439b9:Fix static dependency on libprotobuf-cpp-lite-ndk
Iff2aff9cf:Set sdk_version for cc_genrules used by modules wi...
I7d72934aa:Add sdk mutator for native modules
Ief378a007:Use sdk variant of Soong modules when LOCAL_SDK_VE...

Bug: 149591340
Change-Id: I798fa902c779469c6382b6699351e5d12bf14785
Fixes: 153394225

cc/linker.go

@@ -158,13 +158,6 @@ type BaseLinkerProperties struct {
 			// the ramdisk variant of the C/C++ module.
 			Exclude_static_libs []string
 		}
-		Platform struct {
-			// list of shared libs that should be use to build the platform variant
-			// of a module that sets sdk_version.  This should rarely be necessary,
-			// in most cases the same libraries are available for the SDK and platform
-			// variants.
-			Shared_libs []string
-		}
 	}
 
 	// make android::build:GetBuildNumber() available containing the build ID.
@@ -262,10 +255,6 @@ func (linker *baseLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
 		deps.WholeStaticLibs = removeListFromList(deps.WholeStaticLibs, linker.Properties.Target.Recovery.Exclude_static_libs)
 	}
 
-	if !ctx.useSdk() {
-		deps.SharedLibs = append(deps.SharedLibs, linker.Properties.Target.Platform.Shared_libs...)
-	}
-
 	if ctx.toolchain().Bionic() {
 		// libclang_rt.builtins and libatomic have to be last on the command line
 		if !Bool(linker.Properties.No_libcrt) {