PC-BSD/trueos fcf3896. Makefile Makefile.inc1, share/mk sys.mk

Cleanup Makefile / Makefile.inc1, no need to duplicate whats
in share/mk/sys.mk. Also don't try to run these steps if
executed from release/Makefile
DeltaFile
+0-32Makefile
+0-24Makefile.inc1
+2-0share/mk/sys.mk
+2-563 files

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