config.mak.uname: remove unused uname_P variable
The uname_P make variable was added in commit
e15f545155 ("Makefile
tweaks: Solaris 9+ dont need iconv / move up uname variables",
2006-02-20), but it seems to never have been used (even in that original
commit). The man page for 'uname' notes that the '-p' processor option
is non-portable (the 'uname_M' variable is used by the Makefile for that
purpose).
Remove the unused 'uname_P' make variable.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>