Remove .NET 6.0 from WinForms template (#14230)

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Fixes #14225


## Proposed changes

- Remove out of support versions .NET 6.0 from WinForms template
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CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/dotnet/winforms/pull/14230)

Author: LeafShi1

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.cs.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Přepíše cílovou architekturu.",
   "symbols/TargetFrameworkOverride/displayName": "Přepsání cílové architektury",
   "symbols/Framework/description": "Cílová architektura pro projekt",
-  "symbols/Framework/choices/net6.0/description": "Cílit na net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Target net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Target net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.de.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Überschreibt das Zielframework",
   "symbols/TargetFrameworkOverride/displayName": "Zielframeworküberschreibung",
   "symbols/Framework/description": "Das Zielframework für das Projekt.",
-  "symbols/Framework/choices/net6.0/description": "Auf „net6.0“ abzielen",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Ziel net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Ziel net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.en.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Overrides the target framework",
   "symbols/TargetFrameworkOverride/displayName": "Target framework override",
   "symbols/Framework/description": "The target framework for the project.",
-  "symbols/Framework/choices/net6.0/description": "Target net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Target net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Target net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.es.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Invalida la plataforma de destino",
   "symbols/TargetFrameworkOverride/displayName": "Invalidación de la plataforma de destino",
   "symbols/Framework/description": "Marco de destino del proyecto.",
-  "symbols/Framework/choices/net6.0/description": "Objetivo net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Net8.0 de destino",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Net9.0 de destino",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.fr.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Remplace l’infrastructure cible",
   "symbols/TargetFrameworkOverride/displayName": "Remplacement de l’infrastructure cible",
   "symbols/Framework/description": "Framework cible du projet.",
-  "symbols/Framework/choices/net6.0/description": "net6.0 cible",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Cible Net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Net9.0 cible",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.it.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Ignora il framework di destinazione",
   "symbols/TargetFrameworkOverride/displayName": "Override del framework di destinazione",
   "symbols/Framework/description": "Il framework di destinazione per il progetto.",
-  "symbols/Framework/choices/net6.0/description": "Net6.0 di destinazione",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Destinazione net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Net9.0 di destinazione",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.ja.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "ターゲット フレームワークをオーバーライドします",
   "symbols/TargetFrameworkOverride/displayName": "ターゲット フレームワークのオーバーライド",
   "symbols/Framework/description": "プロジェクトのターゲット フレームワークです。",
-  "symbols/Framework/choices/net6.0/description": "ターゲット net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "ターゲット net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "ターゲット net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.ko.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "대상 프레임워크를 재정의합니다",
   "symbols/TargetFrameworkOverride/displayName": "대상 프레임워크 재정의",
   "symbols/Framework/description": "프로젝트에 대한 대상 프레임워크입니다.",
-  "symbols/Framework/choices/net6.0/description": "대상 net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "대상 net8.0",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Target net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.pl.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Zastępuje platformę docelową",
   "symbols/TargetFrameworkOverride/displayName": "Odrzucenie platformy docelowej",
   "symbols/Framework/description": "Platforma docelowa dla tego projektu.",
-  "symbols/Framework/choices/net6.0/description": "Docelowy net6.0",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": "Docelowa platforma NET 8.0",
   "symbols/Framework/choices/net8.0/displayName": "NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Docelowa platforma net9.0",

pkg/Microsoft.Dotnet.WinForms.ProjectTemplates/content/WinFormsApplication-CSharp/.template.config/localize/templatestrings.pt-BR.json

@@ -5,8 +5,6 @@
   "symbols/TargetFrameworkOverride/description": "Substitui a estrutura de destino",
   "symbols/TargetFrameworkOverride/displayName": "Substituição da estrutura de destino",
   "symbols/Framework/description": "A estrutura de destino do projeto.",
-  "symbols/Framework/choices/net6.0/description": "Net6.0 de destino",
-  "symbols/Framework/choices/net6.0/displayName": ".NET 6.0",
   "symbols/Framework/choices/net8.0/description": ".NET 8.0 de destino",
   "symbols/Framework/choices/net8.0/displayName": ".NET 8.0",
   "symbols/Framework/choices/net9.0/description": "Target net9.0",