remove unused clearerr statements
diff --git a/libbb/copy_file_chunk.c b/libbb/copy_file_chunk.c
index e887cbe..90b6b82 100644
--- a/libbb/copy_file_chunk.c
+++ b/libbb/copy_file_chunk.c
@@ -37,8 +37,6 @@
 	off_t size, amount_written;
 	char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */
 	
-	clearerr(src_file);
-	clearerr(dst_file);
 	while (chunksize > 0) {
 		if (chunksize > BUFSIZ) {
 			size = BUFSIZ;