Remove unused function and bump release number up

Author: dmhacker

compile_setup.sh

@@ -20,7 +20,7 @@ case $major_version in
     ;;
   "5.3")
     version="5.3.15"
-    release_number=1
+    release_number=2
     ;;
   *)
     echo "Invalid selection!"
@@ -68,12 +68,6 @@ cd ..
 
 ############################### BUILD UPDATES ############################### 
 
-function join_by { 
-    local IFS="$1" 
-    shift 
-    echo "$*"
-}
-
 # Copy templates
 echo "Installing fresh set of template files ..." 
 rm -rf $build_folder