zsh: cleanup selfupdate mechanism

brethil_dotfile.sh

@@ -1,10 +1,8 @@
 # vim:ft=zsh ts=2 sw=2 sts=2
 export LANG=en_US.UTF-8
 
-# Check for update, set DISABLE_UPDATE_PROMPT=true to disable the prompt and automatically update
-if [ "$DISABLE_AUTO_UPDATE" != "true" ]; then
+# Set DISABLE_DOTFILES_AUTOUPDATE=false to disable updates
 source "${DOTFILES}/check_for_update.zsh"
-fi
 
 # theme-related variables
 export ZSH_CUSTOM="$DOTFILES"

check_for_update.zsh

@@ -37,7 +37,6 @@ function update_dotfiles() {
 }
 
 () {
-
   if [[ -n $DOTFILES_FORCEUPDATE ]]; then
     update_dotfiles;
     return;