Remove unused variables in monero codebase

There are quite a few variables in the code that are no longer
(or perhaps never were) in use. These were discovered by enabling
compiler warnings for unused variables and cleaning them up.

In most cases where the unused variables were the result
of a function call the call was left but the variable
assignment removed, unless it was obvious that it was
a simple getter with no side effects.

1 files changed, 1 insertions, 2 deletions

diff --git a/src/blockchain_utilities/blockchain_usage.cpp b/src/blockchain_utilities/blockchain_usage.cpp
index 6e87a0974..095e6c503 100644
--- a/src/blockchain_utilities/blockchain_usage.cpp
+++ b/src/blockchain_utilities/blockchain_usage.cpp
@@ -180,7 +180,6 @@ int main(int argc, char* argv[])
 
   LOG_PRINT_L0("Building usage patterns...");
 
-  size_t done = 0;
   std::unordered_map<output_data, std::list<reference>> outputs;
   std::unordered_map<uint64_t,uint64_t> indices;
 
@@ -195,7 +194,7 @@ int main(int argc, char* argv[])
     {
       if (opt_rct_only && out.amount)
         continue;
-      uint64_t index = indices[out.amount]++;
+      indices[out.amount]++;
       output_data od(out.amount, indices[out.amount], coinbase, height);
       auto itb = outputs.emplace(od, std::list<reference>());
       itb.first->first.info(coinbase, height);