[gcc r14-6725] sccopy: remove unused data member [PR113069]

[Marek Polacek]

https://gcc.gnu.org/g:40337cae12051336626d39500485cfc488c9c26e

commit r14-6725-g40337cae12051336626d39500485cfc488c9c26e
Author: Marek Polacek <polacek@redhat.com>
Date:   Tue Dec 19 13:23:17 2023 -0500

    sccopy: remove unused data member [PR113069]
    
            PR tree-optimization/113069
    
    gcc/ChangeLog:
    
            * gimple-ssa-sccopy.cc (scc_discovery): Remove unused member.

Diff:
---
 gcc/gimple-ssa-sccopy.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/gimple-ssa-sccopy.cc b/gcc/gimple-ssa-sccopy.cc
index 19a656e2822..4e561064f79 100644
--- a/gcc/gimple-ssa-sccopy.cc
+++ b/gcc/gimple-ssa-sccopy.cc
@@ -140,7 +140,6 @@ public:
   auto_vec<vec<gimple *>> compute_sccs (vec<gimple *> &stmts);
 
 private:
-  unsigned curr_generation = 0;
   vertex* vertices; /* Indexed by SSA_NAME_VERSION.  */
   auto_vec<unsigned> worklist; /* DFS stack.  */
   auto_vec<unsigned> stack; /* Tarjan stack.  */