[Codacy] Remove this unused method parameter 'validationContext'.

[github-actions]

Codacy finding

• Repository: TransactionProcessing/EstateManagementUI
• Codacy org: TransactionProcessing
• Codacy repo: EstateManagementUI
• Codacy issue ID: 6f6b43d36a15b19f4ba52d416c056c98
• Codacy issue: https://app.codacy.com/gh/TransactionProcessing/EstateManagementUI/issues/6f6b43d36a15b19f4ba52d416c056c98
• File: EstateManagementUI.BlazorServer/Models/MerchantModels.cs
• Line: 214
• Rule: SonarCSharp_S1172
• Severity: Warning

Message: Remove this unused method parameter 'validationContext'.

Sync metadata

Sync key: TransactionProcessing/EstateManagementUI::TransactionProcessing/EstateManagementUI::6f6b43d36a15b19f4ba52d416c056c98