patch 8.1.1086: too many curly braces

Problem:    Too many curly braces.
Solution:   Remove curly braces where they are not needed. (Hirohito Higashi,
            closes #3982)
diff --git a/src/buffer.c b/src/buffer.c
index 6cfa41f..33a7c66 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -1595,9 +1595,7 @@
     set_curbuf(buf, action);
 
     if (action == DOBUF_SPLIT)
-    {
 	RESET_BINDING(curwin);	/* reset 'scrollbind' and 'cursorbind' */
-    }
 
 #if defined(FEAT_EVAL)
     if (aborting())	    /* autocmds may abort script processing */
@@ -3054,9 +3052,8 @@
 	/* put "line 999" in column 40 or after the file name */
 	i = 40 - vim_strsize(IObuff);
 	do
-	{
 	    IObuff[len++] = ' ';
-	} while (--i > 0 && len < IOSIZE - 18);
+	while (--i > 0 && len < IOSIZE - 18);
 	vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len),
 		_("line %ld"), buf == curbuf ? curwin->w_cursor.lnum
 					       : (long)buflist_findlnum(buf));