Removed some debugging output accidentally left in a diff.

Summary:
Missed this in my code review.

Test Plan:
Safe change - only two "fprintf(stderr," calls removed.
Jenkins.

Reviewers: jtolmer, rongrong

Reviewed By: jtolmer

storage/innodb_plugin/os/os0file.c

@@ -2919,15 +2919,13 @@ os_file_write_func(
 	ibool first = TRUE;
 
 	if (srv_trx_log_write_block_size && file_pad) {
-          fprintf(stderr, "offset = %lu len = %lu\n", offset, n);
 		if (((offset + srv_trx_log_write_block_size - 1)
 		     / srv_trx_log_write_block_size)
 		    != ((offset + n + srv_trx_log_write_block_size - 1)
 			/ srv_trx_log_write_block_size)) {
 			// needs padding
 			ulint pad = ut_calc_align(offset + n,
 						  srv_trx_log_write_block_size);
-                        fprintf(stderr, "offset = %lu, pad = %lu, old = %lu\n", offset, pad, os_file_trx_log_write_padding_end);
 			if (pad != os_file_trx_log_write_padding_end) {
 				os_file_trx_log_write_padding_end = pad;
 #ifdef UNIV_DEBUG