libbio: remove breadn.c

sys/src/libbio/breadn.c

@@ -1,26 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <bio.h>
-
-long
-Breadn(Biobufhdr *bp, void *data, long len)
-{
-	char *e, *p;
-	int n;
-
-	p = data;
-	e = p + len;
-	if(e < p){
-		Berror(bp, "invalid read length");
-		return -1;
-	}
-	while(p < e){
-		if((n = Bread(bp, p, e - p)) <= 0){
-			if(n < 0 && p == data)
-				return -1;
-			break;
-		}
-		p += n;
-	}
-	return p - (char*)data;
-}

sys/src/libbio/mkfile

@@ -17,7 +17,6 @@ OFILES=\
 	brdline.$O\
 	brdstr.$O\
 	bread.$O\
-	breadn.$O\
 	bseek.$O\
 	bwrite.$O\
 	bvprint.$O\