[gcc r16-6526] Fortran: Allow BLANK= in OPEN with -std=f95

[Jerry DeLisle]

https://gcc.gnu.org/g:abf001f5a52cb2f94eaad7a6ee25b61de0bec9a0

commit r16-6526-gabf001f5a52cb2f94eaad7a6ee25b61de0bec9a0
Author: Jerry DeLisle <jvdelisle@gcc.gnu.org>
Date:   Tue Jan 6 14:47:49 2026 -0800

    Fortran: Allow BLANK= in OPEN with -std=f95
    
            PR fortran/123029
    
    gcc/fortran/ChangeLog:
    
            * io.cc (check_open_constraints): Delete erroneous check.

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

diff --git a/gcc/fortran/io.cc b/gcc/fortran/io.cc
index 284a8f4187ce..5bffed22eb8f 100644
--- a/gcc/fortran/io.cc
+++ b/gcc/fortran/io.cc
@@ -2247,10 +2247,6 @@ check_open_constraints (gfc_open *open, locus *where)
   /* Checks on the BLANK specifier.  */
   if (open->blank)
     {
-      if (!gfc_notify_std (GFC_STD_F2003, "BLANK= at %L "
-			   "not allowed in Fortran 95", &open->blank->where))
-	return false;
-
       if (open->blank->expr_type == EXPR_CONSTANT)
 	{
 	  static const char *blank[] = { "ZERO", "NULL", NULL };