refactor: remove redundant code and set default branch

The commit refactors the code by removing redundant code that sets the branch to "public" if no custom branch is specified. This change simplifies the logic and improves readability.

lgsm/modules/core_steamcmd.sh

@@ -151,11 +151,6 @@ fn_update_steamcmd_localbuild() {
 	# Uses appmanifest to find local build.
 	localbuild=$(grep buildid "${appmanifestfile}" | tr '[:blank:]"' ' ' | tr -s ' ' | cut -d\  -f3)
 
-	# Set branch to public if no custom branch.
-	if [ -z "${branch}" ]; then
-		branch="public"
-	fi
-
 	# Checks if localbuild variable has been set.
 	if [ -z "${localbuild}" ]; then
 		fn_print_fail "Checking local build: ${remotelocation}: missing local build info"
@@ -178,6 +173,11 @@ fn_update_steamcmd_remotebuild() {
 		find "${HOME}" -type f -name "appinfo.vdf" -exec rm -f {} \; 2> /dev/null
 	fi
 
+	# Set branch to public if no custom branch.
+	if [ -z "${branch}" ]; then
+		branch="public"
+	fi
+
 	# password for branch not needed to check the buildid
 	remotebuildversion=$(${steamcmdcommand} +login "${steamuser}" "${steampass}" +app_info_update 1 +app_info_print "${appid}" +quit | sed -e '/"branches"/,/^}/!d' | sed -n "/\"${branch}\"/,/}/p" | grep -m 1 buildid | tr -cd '[:digit:]')