Remove some Twilio leftovers.

Should have removed them when changed to MessageBird.

sms-notify.tf

@@ -3,14 +3,6 @@ variable "messagebird_access_key" {
   sensitive   = true
 }
 
-# It would have been nicer to buy the phone number with Terraform and the
-# Twilio provider. unfortunately the sign up for the provider is closed right
-# now. So instead the friendly name, that's something.
-variable "twilio_from_number" {
-  default     = "AmILive"
-  description = "Twilio from phone number."
-}
-
 resource "aws_lambda_function" "sms_notify" {
   # checkov:skip=CKV_AWS_50
   # checkov:skip=CKV_AWS_116
@@ -25,7 +17,7 @@ resource "aws_lambda_function" "sms_notify" {
   s3_object_version              = local.payload_object_version
   package_type                   = "Zip"
   handler                        = "sms_notify.handler"
-  description                    = "Send SMS message notification using Twilio."
+  description                    = "Send SMS message notification using MessageBird."
   memory_size                    = var.memory_size
   reserved_concurrent_executions = -1
   timeout                        = var.timeout