[PATCH, rs6000]: Remove write-only assignment

[Uros Bizjak]

2017-12-19  Uros Bizjak  <ubizjak@gmail.com>

    * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Remove
    write-only assignment to "insn" variable.

Uros.
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diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index eb784c562f..e8f21a7fc3 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -1225,7 +1225,6 @@ ppc_deal_with_atomic_sequence (struct regcache *regcache)
 
   closing_insn = loc;
   loc += PPC_INSN_SIZE;
-  insn = read_memory_integer (loc, PPC_INSN_SIZE, byte_order);
 
   /* Insert a breakpoint right after the end of the atomic sequence.  */
   breaks[0] = loc;