Revert "Add Glib::c_str_or_null()"

This reverts commit bf69428947398356c86c43e2be4f26dce03583dc.

Let's wait with this commit until there is a better reason
to branch glibmm-2-46. Didn't notice that master is a stable
branch right now.

1 files changed, 0 insertions, 8 deletions

diff --git a/glib/glibmm/utility.h b/glib/glibmm/utility.h
index 696a963f..3038dffc 100644
--- a/glib/glibmm/utility.h
+++ b/glib/glibmm/utility.h
@@ -109,14 +109,6 @@ std::string convert_return_gchar_ptr_to_stdstring(char* str)
                : std::string();
 }
 
-// Get a pointer to the C style string in a std::string or Glib::ustring,
-// returning nullptr, if the string is empty.
-template <typename T>
-inline const char* c_str_or_null(const T& str)
-{
-  return str.empty() ? nullptr : str.c_str();
-}
-
 // Append type_name to dest, while replacing special characters with '+'.
 void append_canonical_typename(std::string& dest, const char* type_name);