remove 301-service-fabric since the image it used is no longer available

quickstart/301-service-fabric/variables.tf

@@ -1,44 +0,0 @@
-# ----------------------
-# General Settings
-# ----------------------
-variable "name" {
-  default = "demo-tfquickstart"
-}
-
-variable "location" {
-  default = "West US 2"
-}
-
-variable "dns_prefix" {
-  default = "tfq"
-}
-
-variable "environment" {
-  default = "sandbox"
-}
-
-variable "environment_short" {
-  default = "sbx"
-}
-
-# ----------------------
-# Service Fabric Cluster Settings
-# ----------------------
-variable "cluster_size" {
-  default = 3
-}
-
-variable "admin_username" {
-  default = "tfquickstart"
-}
-
-variable "admin_password" {
-  default = "password.1!"
-}
-
-# Your object_id in Azure Active Directory.
-# Has to be manually provided when deploying with azure-cli auth.
-# Used in creating KeyVault Access Policies
-variable "client_object_id" {
-  default = "0938d8bc-3351-4bcc-ddb5-113c2218ff0d" 
-}