remove the old versions of the utility function and use the new

src/variable.cpp

@@ -5176,7 +5176,7 @@ int VarReader::read_peratom()
   bigint nread = 0;
   while (nread < nlines) {
     nchunk = MIN(nlines-nread,CHUNK);
-    eof = comm->read_lines_from_file(fp,nchunk,MAXLINE,buffer);
+    eof = utils::read_lines_from_file(fp,nchunk,MAXLINE,buffer,me,world);
     if (eof) return 1;
 
     char *buf = buffer;