[Ubuntu] get rid of homebrew post-gen script (#4634)

images/linux/post-generation/homebrew-permissions.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-# Fix permissions for Homebrew
-# https://github.com/actions/virtual-environments/issues/1568
-
-# Reset brew repository directory to make the brew clean after chmoding /home
-cd $(brew --repo)
-git reset --hard
-
-brew_folder="/home/linuxbrew/"
-homebrew_user=$(cut -d: -f1 /etc/passwd | tail -1)
-
-if [ -d "$brew_folder" ]; then
-    brew_folder_owner=$(ls -ld $brew_folder | awk '{print $3}')
-    if [ "$homebrew_user" != "$brew_folder_owner" ]; then
-        chown "$homebrew_user":docker -R $brew_folder
-    fi
-fi

images/linux/scripts/installers/post-deployment.sh

@@ -10,8 +10,6 @@ echo "chmod -R 777 /opt"
 chmod -R 777 /opt
 echo "chmod -R 777 /usr/share"
 chmod -R 777 /usr/share
-echo "chmod -R 777 /home"
-chmod -R 777 /home
 
 # remove installer and helper folders
 rm -rf $HELPER_SCRIPT_FOLDER
@@ -27,4 +25,4 @@ echo "Updated /etc/environment: $(cat /etc/environment)"
 
 # Clean yarn and npm cache
 yarn cache clean
-npm cache clean --force
+npm cache clean --force