FreeBSD_HEAD_arm64 - Build #4282 - Fixed

[jenkins-admin at FreeBSD.org]

FreeBSD_HEAD_arm64 - Build #4282 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4282/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4282/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4282/console

Change summaries:

308799 by dexuan:
fix share/man/man4/Makefile for hv_ata_pci_disengage.4

We need to remove the line since we removed the related manual just now.

Reviewed by:	sephe
Approved by:	sephe (mentor)
MFC after:	1 week
Sponsored by:	Microsoft