Qt: Clean and remove empty game settings

src/common/memory_settings_interface.cpp

@@ -22,6 +22,11 @@ void MemorySettingsInterface::Clear()
   m_sections.clear();
 }
 
+bool MemorySettingsInterface::IsEmpty()
+{
+  return m_sections.empty();
+}
+
 bool MemorySettingsInterface::GetIntValue(const char* section, const char* key, s32* value) const
 {
   const auto sit = m_sections.find(section);
@@ -315,3 +320,26 @@ void MemorySettingsInterface::ClearSection(const char* section)
 
   m_sections.erase(sit);
 }
+
+void MemorySettingsInterface::RemoveSection(const char* section)
+{
+  auto sit = m_sections.find(section);
+  if (sit == m_sections.end())
+    return;
+
+  m_sections.erase(sit);
+}
+
+void MemorySettingsInterface::RemoveEmptySections()
+{
+  for (auto sit = m_sections.begin(); sit != m_sections.end();)
+  {
+    if (sit->second.size() > 0)
+    {
+      ++sit;
+      continue;
+    }
+
+    sit = m_sections.erase(sit);
+  }
+}