refactor: improve removal of appinfo.vdf file

The code has been refactored to improve the removal of the appinfo.vdf file. The find command now redirects error output to /dev/null for a cleaner execution.

lgsm/modules/core_steamcmd.sh

@@ -174,8 +174,8 @@ fn_update_steamcmd_remotebuild() {
 	fi
 
 	# Removes appinfo.vdf as a fix for not always getting up to date version info from SteamCMD.
-	if [ "$(find "${HOME}" -type f -name "appinfo.vdf" | wc -l)" -ne "0" ]; then
-		find "${HOME}" -type f -name "appinfo.vdf" -exec rm -f {} \;
+	if [ "$(find "${HOME}" -type f -name "appinfo.vdf" 2> /dev/null | wc -l)" -ne "0" ]; then
+		find "${HOME}" -type f -name "appinfo.vdf" -exec rm -f {} \; 2> /dev/null
 	fi
 
 	# password for branch not needed to check the buildid