Remove tui_source_window::show_symtab_source

tui_source_window::show_symtab_source is identical to
update_source_window, so remove the former.

gdb/ChangeLog
2019-12-20  Tom Tromey  <tom@tromey.com>

	* tui/tui-winsource.c (tui_update_source_windows_with_addr)
	(tui_update_source_windows_with_line): Call update_source_window.
	* tui/tui-source.h (struct tui_source_window)
	<show_symtab_source>: Don't declare.
	* tui/tui-source.c (tui_source_window::show_symtab_source):
	Remove.

Change-Id: I41781df2126e8bafad46d058532d52602a288e06

gdb/ChangeLog

+2019-12-20  Tom Tromey  <tom@tromey.com>
+
+	* tui/tui-winsource.c (tui_update_source_windows_with_addr)
+	(tui_update_source_windows_with_line): Call update_source_window.
+	* tui/tui-source.h (struct tui_source_window)
+	<show_symtab_source>: Don't declare.
+	* tui/tui-source.c (tui_source_window::show_symtab_source):
+	Remove.
+
 2019-12-20  Tom Tromey  <tom@tromey.com>
 	* tui/tui-winsource.c (tui_update_source_windows_with_addr): Call

gdb/tui/tui-source.c

@@ -125,18 +125,6 @@ tui_source_window::set_contents (struct gdbarch *arch,
 }
 
 
-/* Function to display source in the source window.  This function
-   initializes the horizontal scroll to 0.  */
-void
-tui_source_window::show_symtab_source (struct gdbarch *gdbarch,
-				       struct symtab *s,
-				       struct tui_line_or_address line)
-{
-  horizontal_offset = 0;
-  update_source_window_as_is (gdbarch, s, line);
-}
-
-
 /* Answer whether the source is currently displayed in the source
    window.  */
 bool

gdb/tui/tui-source.h

@@ -56,9 +56,6 @@ struct tui_source_window : public tui_source_window_base
     do_erase_source_content (_("[ No Source Available ]"));
   }
 
-  void show_symtab_source (struct gdbarch *, struct symtab *,
-			   struct tui_line_or_address);
-
 protected:
 
   void do_scroll_vertical (int num_to_scroll) override;

gdb/tui/tui-winsource.c

@@ -227,7 +227,7 @@ tui_update_source_windows_with_addr (struct gdbarch *gdbarch, CORE_ADDR addr)
 	{
 	  l.loa = LOA_LINE;
 	  l.u.line_no = sal.line;
-	  TUI_SRC_WIN->show_symtab_source (gdbarch, sal.symtab, l);
+	  TUI_SRC_WIN->update_source_window (gdbarch, sal.symtab, l);
 	}
     }
   else
@@ -261,7 +261,7 @@ tui_update_source_windows_with_line (struct symtab *s, int line)
     default:
       l.loa = LOA_LINE;
       l.u.line_no = line;
-      TUI_SRC_WIN->show_symtab_source (gdbarch, s, l);
+      TUI_SRC_WIN->update_source_window (gdbarch, s, l);
       if (tui_current_layout () == SRC_DISASSEM_COMMAND)
 	{
 	  find_line_pc (s, line, &pc);