diff --git a/utilities/utilities.cpp b/utilities/utilities.cpp
index 14300724..d6ed3bc2 100644
--- a/utilities/utilities.cpp
+++ b/utilities/utilities.cpp
@@ -154,22 +154,6 @@ bool FuzzyLogicAI(double Test, double Threshold, double Probability)
 		return false;
 }
 
-std::string DUE(std::string s) /*Delete Before Equal sign*/
-{
-	// DUE = Copy(s, Pos("=", s) + 1, length(s));
-	return s.substr(s.find("=") + 1, s.length());
-}
-
-std::string DWE(std::string s) /*Delete After Equal sign*/
-{
-	size_t ep = s.find("=");
-	if (ep != std::string::npos)
-		// DWE = Copy(s, 1, ep - 1);
-		return s.substr(0, ep);
-	else
-		return s;
-}
-
 std::string ExchangeCharInString(std::string const &Source, char const From, char const To)
 {
 	std::string replacement;
diff --git a/utilities/utilities.h b/utilities/utilities.h
index 77af4a4b..f0103610 100644
--- a/utilities/utilities.h
+++ b/utilities/utilities.h
@@ -122,8 +122,6 @@ bool FuzzyLogicAI(double Test, double Threshold, double Probability);
 /*to samo ale zawsze niezaleznie od DebugFlag*/
 
 /*operacje na stringach*/
-std::string DUE(std::string s); /*Delete Until Equal sign*/
-std::string DWE(std::string s); /*Delete While Equal sign*/
 std::string ExchangeCharInString(std::string const &Source, char const From, char const To); // zamienia jeden znak na drugi
 std::vector<std::string> &Split(const std::string &s, char delim, std::vector<std::string> &elems);
 std::vector<std::string> Split(const std::string &s, char delim);