Remove support for sunset MariaDB Azure service

These systems were all turned off in Sept 2025: https://learn.microsoft.com/en-us/azure/mariadb/migrate/whats-happening-to-mariadb?utm_source=chatgpt.com

Signed-off-by: Tim Smith <tsmith84@gmail.com>

Author: tas50

providers/azure/config/config.go

@@ -46,7 +46,6 @@ Examples run in the Azure CLI:
 				resources.DiscoveryPostgresFlexibleServers,
 				resources.DiscoveryMySqlServers,
 				resources.DiscoveryMySqlFlexibleServers,
-				resources.DiscoveryMariaDbServers,
 				resources.DiscoveryStorageAccounts,
 				resources.DiscoveryStorageContainers,
 				resources.DiscoveryKeyVaults,
@@ -122,7 +121,6 @@ Examples run in the Azure CLI:
 								"compute":    nil,
 								"mysql":      nil,
 								"postgresql": nil,
-								"mariadb":    nil,
 								"sql":        nil,
 								"storage": {
 									Key: "object",

providers/azure/go.mod

@@ -19,7 +19,6 @@ require (
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/databricks/armdatabricks v1.1.0
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/iothub/armiothub v1.3.0
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/keyvault/armkeyvault v1.5.0
-	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/mariadb/armmariadb v1.2.0
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/monitor/armmonitor v0.11.0
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/msi/armmsi v1.3.0
 	github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/mysql/armmysql v1.2.0

providers/azure/go.sum

@@ -120,8 +120,6 @@ github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/keyvault/armkeyvault v1.5.
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/keyvault/armkeyvault v1.5.0/go.mod h1:4YIVtzMFVsPwBvitCDX7J9sqthSj43QD1sP6fYc1egc=
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/managementgroups/armmanagementgroups v1.0.0 h1:pPvTJ1dY0sA35JOeFq6TsY2xj6Z85Yo23Pj4wCCvu4o=
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/managementgroups/armmanagementgroups v1.0.0/go.mod h1:mLfWfj8v3jfWKsL9G4eoBoXVcsqcIUTapmdKy7uGOp0=
-github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/mariadb/armmariadb v1.2.0 h1:seh4IsOzJkO3AxKPSHWmBKbTtO/4kiSDPa7spQmMxDY=
-github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/mariadb/armmariadb v1.2.0/go.mod h1:DjMBNXv1qSHIv81Mj/MeAru4hk5WhOW4YZ40c+zo+Us=
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/monitor/armmonitor v0.11.0 h1:Ds0KRF8ggpEGg4Vo42oX1cIt/IfOhHWJBikksZbVxeg=
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/monitor/armmonitor v0.11.0/go.mod h1:jj6P8ybImR+5topJ+eH6fgcemSFBmU6/6bFF8KkwuDI=
 github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/msi/armmsi v1.3.0 h1:L7G3dExHBgUxsO3qpTGhk/P2dgnYyW48yn7AO33Tbek=

providers/azure/resources/azure.lr

@@ -50,8 +50,6 @@ azure.subscription @defaults ("name") {
   mySql() azure.subscription.mySqlService
   // PostgreSQL resources in the subscription
   postgreSql() azure.subscription.postgreSqlService
-  // MariaDB resources in the subscription
-  mariaDb() azure.subscription.mariaDbService
   // Cosmos DB resources in the subscription
   cosmosDb() azure.subscription.cosmosDbService
   // Azure Key Vault resources in the subscription
@@ -1787,50 +1785,6 @@ private azure.subscription.mySqlService.flexibleServer @defaults("name location
   firewallRules() []azure.subscription.sqlService.firewallrule
 }
 
-// Azure Database for MariaDB
-private azure.subscription.mariaDbService {
-  // Subscription identifier
-  subscriptionId string
-  // List of MariaDB servers
-  servers() []azure.subscription.mariaDbService.server
-}
-
-// Azure Database for MariaDB server
-private azure.subscription.mariaDbService.server @defaults("id name location") {
-  // MariaDB server ID
-  id string
-  // MariaDB server name
-  name string
-  // MariaDB server location
-  location string
-  // MariaDB server tags
-  tags map[string]string
-  // MariaDB server type
-  type string
-  // MariaDB server properties
-  properties dict
-  // MariaDB server configuration
-  configuration() []azure.subscription.sqlService.configuration
-  // MariaDB server databases
-  databases() []azure.subscription.mariaDbService.database
-  // MariaDB server firewall rules
-  firewallRules() []azure.subscription.sqlService.firewallrule
-}
-
-// Azure Database for MariaDB database
-private azure.subscription.mariaDbService.database @defaults("id name") {
-  // MariaDB database ID
-  id string
-  // MariaDB database name
-  name string
-  // MariaDB database type
-  type string
-  // MariaDB database character set
-  charset string
-  // MariaDB database collation
-  collation string
-}
-
 // Azure Cosmos DB
 private azure.subscription.cosmosDbService {
   // Subscription identifier