fix: Update variables.tf

Removing Terraform defaults

Author: LukaFontanilla

websocket-service/terraform/variables.tf

@@ -1,19 +1,19 @@
 variable "project_id" {
   type = string
-  default = "looker-private-demo"
+  default = ""
 }
 
 variable "deployment_region" {
   type = string
-  default = "us-central1"
+  default = ""
 }
 
 variable "docker_image" {
     type = string
-    default = "us-west2-docker.pkg.dev/looker-private-demo/websocket-service/websocket-service-image:tag1"
+    default = ""
 }
 
 variable "cloud_run_service_name" {
     type = string
     default = "websocket-service"
-}
+}