fix: Remove enableThreadSanitizer flag from test invocation (#783)

Author: palpatim

.circleci/config.yml

@@ -113,7 +113,7 @@ jobs:
           command: xcodebuild build-for-testing -workspace Amplify.xcworkspace -scheme Amplify -sdk iphonesimulator -destination "${destination}" | xcpretty
       - run:
           name: Test amplify
-          command: xcodebuild test -enableThreadSanitizer NO -workspace Amplify.xcworkspace -scheme Amplify -sdk iphonesimulator -destination "${destination}" | xcpretty --simple --color --report junit
+          command: xcodebuild test -workspace Amplify.xcworkspace -scheme Amplify -sdk iphonesimulator -destination "${destination}" | xcpretty --simple --color --report junit
       - store_test_results:
           path: build/reports