[binutils-gdb] Remove unused variables from print_frame_arg_vars

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=35a2129bdcd0571223bb3d4f523b42ef6cd63611

commit 35a2129bdcd0571223bb3d4f523b42ef6cd63611
Author: Tom Tromey <[email protected]>
Date:   Mon Apr 6 13:07:16 2026 -0600

    Remove unused variables from print_frame_arg_vars
    
    I noticed a couple of unused variables in print_frame_arg_vars.  These
    aren't detected by the compiler, presumably due to having a
    destructor.

Diff:
---
 gdb/stack.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/gdb/stack.c b/gdb/stack.c
index 889efe62e0d..6fcc26417e2 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -2484,8 +2484,6 @@ print_frame_arg_vars (const frame_info_ptr &frame,
   struct print_variable_and_value_data cb_data;
   struct symbol *func;
   std::optional<CORE_ADDR> pc;
-  std::optional<compiled_regex> preg;
-  std::optional<compiled_regex> treg;
 
   if (!(pc = get_frame_pc_if_available (frame)))
     {