Reverting "ENG-4856: Bound the number of buffers used for decompression in StreamSnapshotDataReceiver."

This reverts commit 1feee1c577778441535be5dc7021d745755bbb6b.
ENG-4856: Bound the number of buffers used for decompression in StreamSnapshotDataReceiver.

The StreamSnapshotDataReceiver now allocates a buffer for decompression only
when it obtains a buffer for the message from the global pool. Since the global
pool is bounded, the decompression buffer in use is also bounded.