[gcc r13-500] [Ada] Remove useless code related to current value propagation

[Pierre-Marie de Rodat <pmderodat@gcc.gnu.org>]

https://gcc.gnu.org/g:20652c7f22b86d3cd646ecc2227a670f81302509

commit r13-500-g20652c7f22b86d3cd646ecc2227a670f81302509
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Wed Mar 16 14:22:42 2022 +0100

    [Ada] Remove useless code related to current value propagation
    
    The current value propagation applies only to assignable objects and
    doesn't make sense for subprogram entities. This was a mistake
    introduced when extending the current value propagation years ago.
    
    Cleanup related to fixing interference between expansion of attribute
    Loop_Entry and current value propagation.
    
    gcc/ada/
    
            * sem_attr.adb (Address_Checks): Remove call to
            Kill_Current_Values for subprogram entities, because this
            routine only does something for object entities.

Diff:
---
 gcc/ada/sem_attr.adb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb
index 55da9ef73f2..b3965f3664e 100644
--- a/gcc/ada/sem_attr.adb
+++ b/gcc/ada/sem_attr.adb
@@ -504,7 +504,6 @@ package body Sem_Attr is
             begin
                if Is_Subprogram (Ent) then
                   Set_Address_Taken (Ent);
-                  Kill_Current_Values (Ent);
 
                   --  An Address attribute is accepted when generated by the
                   --  compiler for dispatching operation, and an error is