[gcc r13-3934] Fortran: Remove unused declaration

[Bernhard Reutner-Fischer]

https://gcc.gnu.org/g:7ce0cee77adf33397d0ba61e7445effd8a5d8fcc

commit r13-3934-g7ce0cee77adf33397d0ba61e7445effd8a5d8fcc
Author: Bernhard Reutner-Fischer <aldot@gcc.gnu.org>
Date:   Sat Nov 6 06:51:00 2021 +0100

    Fortran: Remove unused declaration
    
    This function was removed years ago, remove it's prototype.
    
    gcc/fortran/ChangeLog:
    
            * gfortran.h (gfc_check_include): Remove declaration.

Diff:
---
 gcc/fortran/gfortran.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/fortran/gfortran.h b/gcc/fortran/gfortran.h
index 6bd8800ecf8..b541a07e2c7 100644
--- a/gcc/fortran/gfortran.h
+++ b/gcc/fortran/gfortran.h
@@ -3207,7 +3207,6 @@ int gfc_at_eof (void);
 int gfc_at_bol (void);
 int gfc_at_eol (void);
 void gfc_advance_line (void);
-int gfc_check_include (void);
 int gfc_define_undef_line (void);
 
 int gfc_wide_is_printable (gfc_char_t);