[gcc r16-5800] gfortran.texi: Remove spurious @menu entry

[Tobias Burnus]

https://gcc.gnu.org/g:6e64cd9b762078a37b5ca27de0413ea951f99fb4

commit r16-5800-g6e64cd9b762078a37b5ca27de0413ea951f99fb4
Author: Tobias Burnus <tburnus@baylibre.com>
Date:   Mon Dec 1 15:52:14 2025 +0100

    gfortran.texi: Remove spurious @menu entry
    
    Fixed the issue:
      gfortran.texi:2542: warning: node up `Unsigned integers' in menu
      `Default exponents' and in sectioning `Extensions implemented in
      GNU Fortran' differ
    
    There is an 'Unsigned integers' @menu entry under @section level
    'Extensions implemented in GNU Fortran', where it should be. But some
    spurious '@menu' entry, only with 'Unsigned integers' in it, was under
    '@subsection Default exponents' just before the node of the
    '@subsection Unsigned integers'. - The latter worked but was bogus
    and lead the warning. Hence, it is now gone.
    
    gcc/fortran/ChangeLog:
    
            * gfortran.texi (Default exponents): Remove spurious @menu entry.

Diff:
---
 gcc/fortran/gfortran.texi | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index fa66bc4783dd..0f7572b25188 100644
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -2535,10 +2535,6 @@ For compatibility, GNU Fortran supports a default exponent of zero in real
 constants with @option{-fdec}.  For example, @code{9e} would be
 interpreted as @code{9e0}, rather than an error.
 
-@menu
-* Unsigned integers::
-@end menu
-
 @node Unsigned integers
 @subsection Unsigned integers
 @cindex Unsigned integers