mpdigdiv is not 32k compatable; remove it

Reference: /n/atom/patch/applied2013/apemprb
Date: Wed Jul 31 18:56:03 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/src/ape/lib/mp/mips/mkfile	Wed Jul 31 18:55:57 2013
+++ /sys/src/ape/lib/mp/mips/mkfile	Wed Jul 31 18:55:57 2013
@@ -8,7 +8,7 @@
 	mpvecdigmuladd.s\
 	mpvecdigmulsub.s\
 	mpvecsub.s\
-	mpdigdiv.s\
+#	mpdigdiv.s\
 
 HFILES=\
 	/sys/include/ape/mp.h\