Revert^2 "Add BUILD_BROKEN_DONT_CHECK_SYSTEMSDK"

fbf1b5e7f1caffdae4340f20802be5702e043c3b

Change-Id: I2b6c7866eac24b217197d5f659b37b2ae6b4207d
diff --git a/android/sdk_version.go b/android/sdk_version.go
index 9c84a27..73568af 100644
--- a/android/sdk_version.go
+++ b/android/sdk_version.go
@@ -306,7 +306,7 @@
 func (s SdkSpec) ValidateSystemSdk(ctx EarlyModuleContext) bool {
 	// Do some early checks. This check is currently only for Java modules. And our only concern
 	// is the use of "system" SDKs.
-	if !isJava(ctx.Module()) || s.Kind != SdkSystem {
+	if !isJava(ctx.Module()) || s.Kind != SdkSystem || ctx.DeviceConfig().BuildBrokenDontCheckSystemSdk() {
 		return true
 	}