Remove generator pin (Azure#52166)

* remove generator version pin

* export api

Author: live1206

sdk/mysql/Azure.ResourceManager.MySql/src/Azure.ResourceManager.MySql.csproj

@@ -10,9 +10,4 @@
     <UseDefaultNamespaceAndOutputFolder>false</UseDefaultNamespaceAndOutputFolder>
   </PropertyGroup>
 
-  <ItemGroup>
-    <!-- TODO: Temporarily pin the version of generator here, will remove this in https://github.com/Azure/azure-sdk-for-net/issues/51436 -->
-    <PackageReference Include="Microsoft.Azure.AutoRest.CSharp" VersionOverride="3.0.0-beta.20250718.1" PrivateAssets="All" />
-  </ItemGroup>
-
 </Project>

sdk/mysql/Azure.ResourceManager.MySql/src/Custom/AzureResourceManagerMySqlContext.Custom.cs

@@ -10,4 +10,3 @@
 [assembly: CodeGenSuppressType("Azure.ResourceManager.MySql.Utf8JsonRequestContent")]
 [assembly: CodeGenSuppressType("Azure.ResourceManager.MySql.ChangeTrackingDictionary")]
 [assembly: CodeGenSuppressType("Azure.ResourceManager.MySql.ModelSerializationExtensions")]
-[assembly: CodeGenSuppressType("Azure.ResourceManager.MySql.FlexibleServers.AzureResourceManagerMySqlFlexibleServersContext")]