Bump RS3 final build, and remove LCOW_SUPPORTED

Signed-off-by: John Howard <jhoward@microsoft.com>
Upstream-commit: 5b24976ad4046a9c071b75df31d9269ad2e84732
Component: engine

components/engine/pkg/system/init_windows.go

@@ -1,17 +1,12 @@
 package system
 
-import "os"
-
 // lcowSupported determines if Linux Containers on Windows are supported.
 var lcowSupported = false
 
 // InitLCOW sets whether LCOW is supported or not
-// TODO @jhowardmsft.
-// 1. Replace with RS3 RTM build number.
-// 2. Remove the getenv check when image-store is coalesced as shouldn't be needed anymore.
 func InitLCOW(experimental bool) {
 	v := GetOSVersion()
-	if experimental && v.Build > 16278 && os.Getenv("LCOW_SUPPORTED") != "" {
+	if experimental && v.Build >= 16299 {
 		lcowSupported = true
 	}
 }