Revert "Enforce min_sdk_version of apex(use_vendor:true)"

This reverts commit 380fc3615c.

Reason for revert: breaking one of internal targets

Change-Id: Ica96c44078e5a7f674410828af3ba851317775dd

Exempt-From-Owner-Approval: revert to fix build failure

cc/vndk.go

@@ -297,9 +297,6 @@ func processLlndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
 	if !Bool(lib.Properties.Vendor_available) {
 		vndkPrivateLibraries(mctx.Config())[name] = filename
 	}
-	if mctx.OtherModuleExists(name) {
-		mctx.AddFarVariationDependencies(m.Target().Variations(), llndkImplDep, name)
-	}
 }
 
 func processVndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {