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remove imagepagerefs() acid function

--- a/sys/lib/acid/kernel

+++ b/sys/lib/acid/kernel

@@ -29,20 +29,6 @@

 // print Image cache contents

 IHASHSIZE = 64;

-defn imagepagerefs(i) {

-	local p, n;

-

-	n = 0;

-	p = palloc.$tail;

-	while p != 0 && p.image != 0 do {

-		if p.image == i then {

-			n = n + 1;

-		}

-		p = p.prev;

-	}

-	return n;

-}

-

 defn imagecacheline(h) {

 	local d, p, q;

-- 

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