removed some unused functions (#6732)

Author: firewave

lib/astutils.cpp

@@ -1094,18 +1094,6 @@ static bool isAliased(const Token *startTok, const Token *endTok, nonneg int var
     return false;
 }
 
-bool isAliased(const Variable *var)
-{
-    if (!var)
-        return false;
-    if (!var->scope())
-        return false;
-    const Token *start = var->declEndToken();
-    if (!start)
-        return false;
-    return isAliased(start, var->scope()->bodyEnd, var->declarationId());
-}
-
 bool exprDependsOnThis(const Token* expr, bool onVar, nonneg int depth)
 {
     if (!expr)

lib/astutils.h

@@ -389,8 +389,6 @@ bool isAliasOf(const Token *tok, nonneg int varid, bool* inconclusive = nullptr)
 
 bool isAliasOf(const Token* tok, const Token* expr, int* indirect = nullptr, bool* inconclusive = nullptr);
 
-bool isAliased(const Variable *var);
-
 const Token* getArgumentStart(const Token* ftok);
 
 /** Determines the number of arguments - if token is a function call or macro

lib/cppcheck.h

@@ -156,8 +156,6 @@ class CPPCHECKLIB CppCheck : ErrorLogger {
 
     bool isPremiumCodingStandardId(const std::string& id) const;
 
-    std::string getAddonMessage(const std::string& id, const std::string& text) const;
-
     /**
      * @brief Get dumpfile <rawtokens> contents, this is only public for testing purposes
      */