[FYI] Remove obsolete comments from field_fmt

[Tom Tromey <tom at tromey dot com>]

This removes some comments that I believe were made obsolete by the
recent change to cli_ui_out::do_field_fmt.  The comment in mi_ui_out
probably was just copy/paste, because I think aligning never made
sense in an MI context.

gdb/ChangeLog
2018-11-25  Tom Tromey  <tom@tromey.com>

	* ui-out.c (ui_out::field_fmt): Remove comment.
	* tui/tui-out.c (tui_ui_out::do_field_fmt): Remove comment.
	* mi/mi-out.c (mi_ui_out::do_field_fmt): Remove comment.
---
 gdb/ChangeLog     | 6 ++++++
 gdb/mi/mi-out.c   | 2 --
 gdb/tui/tui-out.c | 2 --
 gdb/ui-out.c      | 1 -
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/gdb/mi/mi-out.c b/gdb/mi/mi-out.c
index ea39fe29a1..39b18b03a0 100644
--- a/gdb/mi/mi-out.c
+++ b/gdb/mi/mi-out.c
@@ -124,8 +124,6 @@ mi_ui_out::do_field_string (int fldno, int width, ui_align align,
   fprintf_unfiltered (stream, "\"");
 }
 
-/* This is the only field function that does not align.  */
-
 void
 mi_ui_out::do_field_fmt (int fldno, int width, ui_align align,
 			 const char *fldname, const char *format,
diff --git a/gdb/tui/tui-out.c b/gdb/tui/tui-out.c
index 40f736fcb2..6d4e2363f3 100644
--- a/gdb/tui/tui-out.c
+++ b/gdb/tui/tui-out.c
@@ -71,8 +71,6 @@ tui_ui_out::do_field_string (int fldno, int width, ui_align align,
   cli_ui_out::do_field_string (fldno, width, align, fldname, string);
 }
 
-/* This is the only field function that does not align.  */
-
 void
 tui_ui_out::do_field_fmt (int fldno, int width, ui_align align,
 			  const char *fldname, const char *format,
diff --git a/gdb/ui-out.c b/gdb/ui-out.c
index ebe0285b49..3d74f78543 100644
--- a/gdb/ui-out.c
+++ b/gdb/ui-out.c
@@ -523,7 +523,6 @@ ui_out::field_fmt (const char *fldname, const char *format, ...)
   int width;
   ui_align align;
 
-  /* Will not align, but has to call anyway.  */
   verify_field (&fldno, &width, &align);
 
   va_start (args, format);
-- 
2.17.2