revert 8c228a123f: accidental commit

was testing out the git/import tweaks and accidentally
pushed this commit. No comment on whether we want it,
but it definitely wasn't ready for merge.

Oops.

sys/src/9/mkfile

@@ -3,13 +3,11 @@ ARCH=\
 	bcm64\
 	cycv\
 	kw\
-#	power arch:\
-#	mtx\
+	mtx\
 	omap\
 	pc\
 	pc64\
-#	power arch:\
-#	ppc\
+	ppc\
 	sgi\
 	teg2\
 	xen\

sys/src/boot/zynq/mkfile

@@ -7,9 +7,6 @@ TEXTBASE=0xfffc0000
 
 all:V: $TARG
 
-install:V:
-	echo install not supported >[1=2]
-
 clean:V:
 	rm -rf $TARG *.$O
 	@{objtype=$cputype mk -f mkfile.port clean}

sys/src/mkfile

@@ -1,12 +1,5 @@
 </$objtype/mkfile
 
-SUPPORTED_OBJS=\
-	386\
-	amd64\
-	arm\
-	arm64\
-	mips\
-
 LIBS=\
 	lib9p\
 	libString\
@@ -59,29 +52,21 @@ none:VQ:
 
 all install clean nuke:VQ:
 	date
-	if (~ $objtype $SUPPORTED_OBJS) {
 	for (i in $LIBS $SUBSYS $CMDS) @{
 		cd $i
 		mk $target
 	}
-	}
-	if not
-		echo $objtype arch not supported by 9front >[1=2]
 	date
 
 installall:V:
 	echo "installall not supported"
 
 release:V:
-	if (~ $objtype $SUPPORTED_OBJS) {
 	mk nuke
 	rm -f /$objtype/lib/ape/*.a
 	rm -f /$objtype/lib/*.a
 	mk install
 	mk clean
-	}
-	if not
-		echo $objtype architecture not supported >[1=2]
 
 kernels:V:
 	for (i in 9 boot) @{