[PATCH obv] ui-out.c: Remove unused enum

[Simon Marchi <simon.marchi@ericsson.com>]

FYI, I just pushed this as obvious.

This is unused since 54eb231c4bca046e8b8cd73461f695e02c5620d5, where
static arrays of ui_out_levels were replaced with vectors.

gdb/ChangeLog:

	* ui-out.c (MAX_UI_OUT_LEVELS): Remove.
---
 gdb/ChangeLog | 4 ++++
 gdb/ui-out.c  | 6 ------
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 3c97ac2..829a48c 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2016-02-02  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* ui-out.c (MAX_UI_OUT_LEVELS): Remove.
+
 2016-02-02  Walfred Tedeschi  <walfred.tedeschi@intel.com>
 
 	* amd64-linux-siginfo.c (nat_siginfo_t, nat_sigval_t, nat_timeval):
diff --git a/gdb/ui-out.c b/gdb/ui-out.c
index aa6d6fe..e5a2bf1 100644
--- a/gdb/ui-out.c
+++ b/gdb/ui-out.c
@@ -37,12 +37,6 @@ struct ui_out_hdr
     struct ui_out_hdr *next;
   };
 
-/* Maintain a stack so that the info applicable to the inner most list
-   is always available.  Stack/nested level 0 is reserved for the
-   top-level result.  */
-
-enum { MAX_UI_OUT_LEVELS = 8 };
-
 struct ui_out_level
   {
     /* Count each field; the first element is for non-list fields.  */
-- 
2.5.1