Revert "SE-988 Thread Safety issues in one of the constructors of default mule session."

This reverts commit 092e6aec173338236837641a14ff31e512015e2f.
Revert "SE-988 Thread Safety issues in one of the constructors of default mule session."

This reverts commit 50a2e6f9cd524d433605711bf1a101557491dd54.
Revert "MULE-7742 Thread Safety issues in one of the constructors of default mule session."

This reverts commit d01cecc2126285fa6825b32cb2502611effa8cf5.