fix(linux/postins): allow running on rpm-ostree environments (#4963)

src_assets/linux/misc/postinst

@@ -4,10 +4,6 @@
 echo "Loading uhid kernel module for DS5 emulation."
 modprobe uhid
 
-# Check if we're in an rpm-ostree environment
-if [ ! -x "$(command -v rpm-ostree)" ]; then
-  echo "Not in an rpm-ostree environment, proceeding with post install steps."
-
 # Ensure Sunshine can grab images from KMS
 path_to_setcap=$(which setcap)
 path_to_sunshine=$(readlink -f "$(which sunshine)")
@@ -31,6 +27,3 @@ if [ ! -x "$(command -v rpm-ostree)" ]; then
 else
   echo "error: udevadm not found or not executable."
 fi
-else
-  echo "rpm-ostree environment detected, skipping post install steps. Restart to apply the changes."
-fi