Revert "Fix snapshot of a host/device cc_library with stubs"

Revert submission 1302576

Bug: 156054601
Reason for revert: Presumed root cause of build break.
Reverted Changes:
Ifc8116e11:Detect invalid arch specific properties in snapsho...
I7ebd33307:Adds support for 'ignored-on-host'
I167b47a13:Fix snapshot of a host/device cc_library with stub...

Change-Id: Ibccce5286605bb71c6be3b3550ba86d8b7e24fa7
diff --git a/cc/library_sdk_member.go b/cc/library_sdk_member.go
index a7a1de2..730012c 100644
--- a/cc/library_sdk_member.go
+++ b/cc/library_sdk_member.go
@@ -342,11 +342,7 @@
 
 	// The specific stubs version for the lib variant, or empty string if stubs
 	// are not in use.
-	//
-	// Marked 'ignored-on-host' as the StubsVersion() from which this is initialized is
-	// not set on host and the stubs.versions property which this is written to is does
-	// not vary by arch so cannot be android specific.
-	StubsVersion string `sdk:"ignored-on-host"`
+	StubsVersion string
 
 	// outputFile is not exported as it is always arch specific.
 	outputFile android.Path