Fix a case where socket I/O atomicity is violated due to not dropping the entire record when a non-data mbuf is removed in the soreceive() path. This only triggers a panic directly when compiled with INVARIANTS.
Fix a case where socket I/O atomicity is violated due to not dropping
the entire record when a non-data mbuf is removed in the soreceive() path.
This only triggers a panic directly when compiled with INVARIANTS.

PR:		38495
Submitted by:	James Juran
MFC after:	1 week

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