diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b0e0547d69f..9c6cf686cb3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2019-06-25  Tom Tromey  <tom@tromey.com>
+
+	* tui/tui-data.h (struct tui_command_element): Remove.
+	(union tui_which_element) <command>: Remove.
+	* tui/tui-data.c (init_content_element): Remove CMD_WIN case.  Add
+	assert.
+	(free_content_elements): Remove CMD_WIN case.
+
 2019-06-25  Tom Tromey  <tom@tromey.com>
 
 	* tui/tui-layout.c (tui_set_layout): Update.
diff --git a/gdb/tui/tui-data.c b/gdb/tui/tui-data.c
index 2c1e575dc48..427f04abc2f 100644
--- a/gdb/tui/tui-data.c
+++ b/gdb/tui/tui-data.c
@@ -366,6 +366,7 @@ init_content_element (struct tui_win_element *element,
 {
   gdb_assert (type != EXEC_INFO_WIN);
   gdb_assert (type != LOCATOR_WIN);
+  gdb_assert (type != CMD_WIN);
 
   switch (type)
     {
@@ -383,9 +384,6 @@ init_content_element (struct tui_win_element *element,
 	tui_alloc_content (1, DATA_ITEM_WIN);
       element->which_element.data_window->content_size = 1;
       break;
-    case CMD_WIN:
-      element->which_element.command.line = NULL;
-      break;
     case DATA_ITEM_WIN:
       element->which_element.data.name = NULL;
       element->which_element.data.type = TUI_REGISTER;
@@ -627,9 +625,6 @@ free_content_elements (tui_win_content content,
                       xfree (element->which_element.data.content);
 		      xfree (element);
 		      break;
-		    case CMD_WIN:
-		      xfree (element->which_element.command.line);
-		      break;
 		    default:
 		      break;
 		    }
diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index 0990a2d1690..5c1f2bdc890 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -201,12 +201,6 @@ struct tui_data_element
 };
 
 
-/* Elements in the command window content.  */
-struct tui_command_element
-{
-  char *line;
-};
-
 #ifdef PATH_MAX
 # define MAX_LOCATOR_ELEMENT_LEN        PATH_MAX
 #else
@@ -234,7 +228,6 @@ union tui_which_element
   struct tui_source_element source;	/* The source elements.  */
   struct tui_gen_win_info *data_window;	/* Data display elements.  */
   struct tui_data_element data;		/* Elements of data_window.  */
-  struct tui_command_element command;	/* Command elements.  */
 };
 
 struct tui_win_element