chore(infra): remove deprecated Amplify deployment stack

amplify-stack.yaml

@@ -1,61 +0,0 @@
-AWSTemplateFormatVersion: '2010-09-09'
-Description: 'CloudFormation template for deploying Astro site to AWS Amplify'
-
-Parameters:
-  GitHubAccessToken:
-    Type: String
-    NoEcho: true
-    Description: GitHub Access token for repository access
-
-Resources:
-  AmplifyApp:
-    Type: AWS::Amplify::App
-    UpdateReplacePolicy: Delete
-    DeletionPolicy: Delete
-    Properties:
-      Name: blog_daisuke_nakahara
-      Repository: https://github.com/Daisuke897/blog_daisuke_nakahara
-      AccessToken: !Ref GitHubAccessToken
-      Platform: WEB
-      BuildSpec: |
-        version: 1
-        frontend:
-          phases:
-            preBuild:
-              commands:
-                - npm ci --cache .npm --prefer-offline
-            build:
-              commands:
-                - npm run build
-          artifacts:
-            baseDirectory: dist
-            files:
-              - '**/*'
-          cache:
-            paths:
-              - .npm/**/*
-      CustomRules:
-        - Source: '</^[^.]+$|\.(?!(css|gif|ico|jpg|js|png|txt|svg|woff|woff2|ttf|map|json)$)([^.]+$)/'
-          Target: '/index.html'
-          Status: '404-200'
-      EnableBranchAutoDeletion: false
-      CustomHeaders: ''
-
-  AmplifyBranch:
-    Type: AWS::Amplify::Branch
-    UpdateReplacePolicy: Delete
-    DeletionPolicy: Delete
-    Properties:
-      AppId: !GetAtt AmplifyApp.AppId
-      EnableAutoBuild: true
-      EnablePullRequestPreview: false
-      EnablePerformanceMode: false
-      Stage: PRODUCTION
-      BranchName: main
-      Framework: Astro
-
-Outputs:
-
-  AppId:
-    Description: 'Amplify App ID'
-    Value: !GetAtt AmplifyApp.AppId