remove files related to nightly integration project (staticwebdev#27)

Author: HannahZhuSWE

.github/workflows/playwright-onDemand.yml

@@ -20,7 +20,4 @@
 
 npm-debug.log*
 yarn-debug.log*
-yarn-error.log*
-/test-results/
-/playwright-report/
-/playwright/.cache/
+yarn-error.log*

.github/workflows/playwright-scheduled.yml

@@ -14,7 +14,6 @@
  "start": "react-scripts start",
  "build": "react-scripts build",
  "test": "react-scripts test",
- "playwright_test": "playwright test",
  "eject": "react-scripts eject"
  },
  "eslintConfig": {
@@ -31,8 +30,5 @@
  "last 1 firefox version",
  "last 1 safari version"
  ]
- },
- "devDependencies": {
- "@playwright/test": "^1.22.2"
  }
 }