Remove some unused variables and lambda captures

Reviewers: mferencevic, mislav.bradac

Reviewed By: mislav.bradac

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D832

src/database/graph_db_accessor.cpp

@@ -74,7 +74,7 @@ void GraphDbAccessor::BuildIndex(const GraphDbTypes::Label &label,
   // on function exit switch the build_in_progress to false
   utils::OnScopeExit on_exit([this] {
     bool expected = true;
-    bool success =
+    [[maybe_unused]] bool success =
         db_.index_build_in_progress_.compare_exchange_strong(expected, false);
     debug_assert(success, "BuildIndexInProgress flag was not set during build");
   });

src/database/indexes/index_common.hpp

@@ -155,7 +155,8 @@ static void Refresh(
           indices_entries_accessor.insert(
               TIndexEntry(indices_entry, new_record));
 
-        auto success = indices_entries_accessor.remove(indices_entry);
+        [[maybe_unused]] auto success =
+            indices_entries_accessor.remove(indices_entry);
         debug_assert(success, "Unable to delete entry.");
       }
 

tests/concurrent/sl_hang.cpp

@@ -14,15 +14,15 @@ TEST(SkipList, HangDuringFindOrLarger) {
   const int num_of_threads = 8;
   const int iter = 100000;
   for (int i = 0; i < num_of_threads; ++i) {
-    threads.emplace_back([&iter, &skiplist]() {
+    threads.emplace_back([&skiplist]() {
       auto accessor = skiplist.access();
       for (int i = 0; i < iter; ++i) accessor.insert(rand() % 3);
     });
-    threads.emplace_back([&iter, &skiplist]() {
+    threads.emplace_back([&skiplist]() {
       auto accessor = skiplist.access();
       for (int i = 0; i < iter; ++i) accessor.remove(rand() % 3);
     });
-    threads.emplace_back([&iter, &skiplist]() {
+    threads.emplace_back([&skiplist]() {
       auto accessor = skiplist.access();
       for (int i = 0; i < iter; ++i)
         accessor.find_or_larger(rand() % 3);