Revert "Fixed bug with fetching deployment information in"

This reverts commit 37c0dc46c6f831f309302b28302ec548837c5a67.
Revert "Added column headers for host and deployment in json reports"

This reverts commit a77a7e4657b1e8c5ffc86ae26674e089e02baab1.
Revert "Adding host and deployment info to missing exists entries in the nova usage audit"

This reverts commit cf509771d43d09c5d5fe131265a231ff81ea9ca8.
Merge pull request #325 from manalilatkar/null_request_id_stable_fix

Null request id stable fix