Revert "ci: Run Cocoapods integration test on iOS 18.5 (getsentry#5776)"

This reverts commit cd1b465.

Author: philipsawyerdd

Samples/iOS-Cocoapods-Swift6/fastlane/Fastfile

@@ -8,16 +8,14 @@ platform :ios do
     run_tests(
       workspace: "iOS-Cocoapods-Swift6.xcworkspace",
       scheme: "App",
-      build_for_testing: true,
-      destination: "platform=iOS Simulator,name=iPhone 16,OS=18.5"
+      build_for_testing: true
     )
     run_tests(
       workspace: "iOS-Cocoapods-Swift6.xcworkspace", 
       scheme: "App",
       test_without_building: true,
       result_bundle: true,
-      result_bundle_path: "fastlane/test_results/results.xcresult",
-      destination: "platform=iOS Simulator,name=iPhone 16,OS=18.5"
+      result_bundle_path: "fastlane/test_results/results.xcresult"
     )
   end
 end