removed failed location count variable, as it is not required

Author: nc-shahidazim

infrastructure/modules/application-insights-availability-test/alerts.tf

@@ -12,7 +12,7 @@ resource "azurerm_monitor_metric_alert" "this" {
   application_insights_web_test_location_availability_criteria {
     web_test_id           = azurerm_application_insights_standard_web_test.this.id
     component_id          = var.application_insights_id
-    failed_location_count = var.alert.failed_location_count
+    failed_location_count = 2
   }
 
   description = var.alert.description

infrastructure/modules/application-insights-availability-test/variables.tf

@@ -135,8 +135,7 @@ variable "alert" {
     description           = optional(string, "Availability test alert")
     frequency             = optional(string, "PT1M")
     window_size           = optional(string, "PT5M")
-    auto_mitigate         = optional(bool)
-    failed_location_count = optional(number, 2)
+    auto_mitigate         = optional(bool, true)
   })
 
   validation {
@@ -155,10 +154,5 @@ variable "alert" {
     error_message = "Window size must be one of: PT1M, PT5M, PT15M, PT30M, PT1H, PT6H, PT12H, P1D"
   }
 
-  validation {
-    condition     = var.alert.failed_location_count >= 1 && var.alert.failed_location_count <= length(var.geo_locations)
-    error_message = "The failed location count must be >= 1 and cannot exceed the number of configured geo locations."
-  }
-
   default = {}
 }