Unit tests stabilization: locks on all logs data manipulation; fixed typos and removed unused method.
Unit tests stabilization: locks on all logs data manipulation; fixed typos and removed unused method.

msftberlin/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,DocuSignDev/azure-activedirectory-library-for-ios,1234-/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,msintuneappsdk/azure-activedirectory-library-for-objc,msintuneappsdk/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,msftberlin/azure-activedirectory-library-for-objc,smemane/azure-activedirectory-library-for-objc,AzureAD/azure-activedirectory-library-for-objc,DocuSignDev/azure-activedirectory-library-for-ios