Remove special-casing of DCLA libraries

This is a revert of aosp/2449906

mixed build currently supports platform and apex variants of allowlisted
cc libraries. However when building apex variants, we would pass an
apexKey only for allowlisted _dcla_ libraries. This meant that for libraries in
mixed build allowlist but not in dcla allowlist, Soong's apex variants
were being replaced with Bazel's platform variants.

Bug: 270339610
Bug: 288906815
Test: Added libnativeloader, libartpalette-system to prod mixed build
allowlist and `m`

Change-Id: I922fed898b3c3961466cd1165c371839a4192237

cc/cc.go

@@ -1968,9 +1968,6 @@ func allEnabledSanitizersSupportedByBazel(ctx android.BaseModuleContext, c *Modu
 func GetApexConfigKey(ctx android.BaseModuleContext) *android.ApexConfigKey {
 	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
 	if !apexInfo.IsForPlatform() {
-		if !ctx.Config().BazelContext.IsModuleDclaAllowed(ctx.Module().Name()) {
-			return nil
-		}
 		apexKey := android.ApexConfigKey{
 			WithinApex:     true,
 			ApexSdkVersion: findApexSdkVersion(ctx, apexInfo).String(),