chore: remove references to slack webhook

Author: OS-pedrogustavobilro

.github/workflows/continuous_integration.yml

@@ -32,8 +32,6 @@ jobs:
 
       - name: Unit tests
         run: bundle exec fastlane unit_tests
-        env:
-          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
 
       - name: Code Coverage
         run: bundle exec fastlane coverage

fastlane/Fastfile

@@ -18,8 +18,7 @@ default_platform(:ios)
 platform :ios do
   desc "Lane to run the unit tests"
   lane :unit_tests do
-    run_tests(device: "iPhone 17", scheme: "OSInAppBrowserLib",
-      slack_url: ENV['SLACK_WEBHOOK'])
+    run_tests(device: "iPhone 17", scheme: "OSInAppBrowserLib")
   end
 
   desc "Code coverage"