FreeBSD/src 6025660 (r344231)sys/vm vm_pageout.c

Remove a redundant flag variable.

Use the object pointer itself to determine whether the object is locked.
No functional change intended.

Reviewed by:    kib
MFC after:      1 week
Sponsored by:   Netflix
Differential Revision:  https://reviews.freebsd.org/D19215
DeltaFile
+10-33sys/vm/vm_pageout.c
+10-331 files

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