diff --git a/src/support/lstrings.cpp b/src/support/lstrings.cpp
index c8fc921da3..bab226f1bf 100644
--- a/src/support/lstrings.cpp
+++ b/src/support/lstrings.cpp
@@ -60,45 +60,6 @@ static inline char_type qchar_to_ucs4(QChar const & qchar)
 }
 
 
-
-QString toqstr(char const * str)
-{
-	return QString::fromUtf8(str);
-}
-
-QString toqstr(std::string const & str)
-{
-	return toqstr(str.c_str());
-}
-
-
-QString toqstr(docstring const & ucs4)
-{
-	// If possible we let qt do the work, since this version does not
-	// need to be superfast.
-	return QString::fromUcs4((uint const *)ucs4.data(), ucs4.length());
-}
-
-QString toqstr(char_type ucs4)
-{
-	union { char_type c; uint i; } u = { ucs4 };
-	return QString::fromUcs4(&u.i, 1);
-}
-
-docstring qstring_to_ucs4(QString const & qstr)
-{
-	if (qstr.isEmpty())
-		return docstring();
-	QVector<uint> const ucs4 = qstr.toUcs4();
-	return docstring((char_type const *)(ucs4.constData()), ucs4.size());
-}
-
-std::string fromqstr(QString const & str)
-{
-	return str.isEmpty() ? std::string() : std::string(str.toUtf8());
-}
-
-
 /**
  * Convert a UCS4 character into a QChar.
  * This is a hack (it does only make sense for the common part of the UCS4