Code cleanup: Remove unused object (#6680)

Author: danmar

cppcheckpremium-suppressions

@@ -70,9 +70,6 @@ premium-misra-cpp-2023-8.2.7:lib/checkclass.cpp
 # ignored function return value (emplace etc)
 premium-misra-cpp-2023-0.1.2
 
-# TODO there is unused map
-premium-misra-cpp-2023-0.2.1:lib/symboldatabase.cpp
-
 # TODO use named function arguments
 premium-misra-cpp-2023-0.2.2
 

lib/symboldatabase.cpp

@@ -1690,8 +1690,6 @@ void SymbolDatabase::createSymbolDatabaseExprIds()
     });
 
     for (const Scope * scope : exprScopes) {
-        std::unordered_map<std::string, std::vector<Token*>> exprs;
-
         std::unordered_map<std::string, nonneg int> unknownIds;
         // Assign IDs to incomplete vars which are part of an expression
         // Such variables should be assumed global