Clean up utils

Whitespace and remove dead function

lib/utils.sh

@@ -2,7 +2,6 @@ asdf_version() {
   echo "0.2.0-dev"
 }
 
-
 asdf_dir() {
   if [ -z $ASDF_DIR ]; then
     local current_script_path=${BASH_SOURCE[0]}
@@ -12,7 +11,6 @@ asdf_dir() {
   echo $ASDF_DIR
 }
 
-
 get_install_path() {
   local plugin=$1
   local install_type=$2
@@ -27,7 +25,6 @@ get_install_path() {
   fi
 }
 
-
 check_if_plugin_exists() {
   # Check if we have a non-empty argument
   if [ -z "${1+set}" ]; then
@@ -51,18 +48,10 @@ check_if_version_exists() {
   fi
 }
 
-
-get_version_part() {
-  IFS='@' read -a version_info <<< "$1"
-  echo ${version_info[$2]}
-}
-
-
 get_plugin_path() {
   echo $(asdf_dir)/plugins/$1
 }
 
-
 display_error() {
   echo >&2 $1
 }