diff --git a/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.cpp b/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.cpp
index 94e316f364..f69c370815 100644
--- a/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.cpp
+++ b/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.cpp
@@ -5,10 +5,7 @@
 #include "DolphinQt2/Config/Graphics/GraphicsWidget.h"
 
 #include <QEvent>
-#include <QFormLayout>
-#include <QGroupBox>
 #include <QLabel>
-#include <QVBoxLayout>
 
 #include "DolphinQt2/Config/Graphics/GraphicsWindow.h"
 
diff --git a/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.h b/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.h
index 04e5a1afeb..46cdc8b971 100644
--- a/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.h
+++ b/Source/Core/DolphinQt2/Config/Graphics/GraphicsWidget.h
@@ -21,9 +21,6 @@ signals:
   void DescriptionAdded(QWidget* widget, const char* description);
 
 protected:
-  void AddWidget(const QString& name, QWidget* widget);
-  void AddWidget(QWidget* widget);
-
   void AddDescription(QWidget* widget, const char* description);
 
   virtual void LoadSettings() = 0;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h b/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
index c322c6f20d..0608f20acb 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h
@@ -21,13 +21,7 @@ public:
 private:
   void LoadSettings() override;
   void SaveSettings() override;
-  void CreateButtonsLayout();
-  void CreateControlstickLayout();
-  void CreateCStickLayout();
-  void CreateTriggersLayout();
-  void CreateDPadLayout();
   void CreateMainLayout();
-  void ConnectWidgets();
 
   // Main
   QHBoxLayout* m_main_layout;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h b/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
index 7f0f628275..4650759f9f 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h
@@ -21,13 +21,7 @@ public:
 private:
   void LoadSettings() override;
   void SaveSettings() override;
-  void CreateButtonsLayout();
-  void CreateControlstickLayout();
-  void CreateCStickLayout();
-  void CreateTriggersLayout();
-  void CreateDPadLayout();
   void CreateMainLayout();
-  void ConnectWidgets();
 
   // Main
   QHBoxLayout* m_main_layout;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/IOWindow.cpp b/Source/Core/DolphinQt2/Config/Mapping/IOWindow.cpp
index 16f0186cb2..50e56b6bf2 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/IOWindow.cpp
+++ b/Source/Core/DolphinQt2/Config/Mapping/IOWindow.cpp
@@ -20,7 +20,6 @@
 
 #include "Core/Core.h"
 #include "DolphinQt2/Config/Mapping/MappingCommon.h"
-#include "DolphinQt2/Config/Mapping/MappingWidget.h"
 #include "DolphinQt2/Config/Mapping/MappingWindow.h"
 #include "InputCommon/ControlReference/ControlReference.h"
 #include "InputCommon/ControllerEmu/ControllerEmu.h"
diff --git a/Source/Core/DolphinQt2/Config/Mapping/IOWindow.h b/Source/Core/DolphinQt2/Config/Mapping/IOWindow.h
index b59d84db65..05726eaa3d 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/IOWindow.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/IOWindow.h
@@ -43,8 +43,6 @@ public:
 private:
   void CreateMainLayout();
   void ConnectWidgets();
-  void LoadSettings();
-  void SaveSettings();
   void Update();
 
   void OnDialogButtonPressed(QAbstractButton* button);
diff --git a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
index 2885385f33..0d754850f3 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
+++ b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
@@ -16,7 +16,6 @@
 #include "Common/FileUtil.h"
 #include "Common/IniFile.h"
 #include "Core/Core.h"
-#include "Core/HW/GCPad.h"
 #include "DolphinQt2/Config/Mapping/GCKeyboardEmu.h"
 #include "DolphinQt2/Config/Mapping/GCPadEmu.h"
 #include "DolphinQt2/Config/Mapping/GCPadWiiU.h"
diff --git a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.h b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.h
index 760b47e151..3a7a308433 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.h
+++ b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.h
@@ -64,7 +64,6 @@ private:
   void CreateResetLayout();
   void CreateMainLayout();
   void ConnectWidgets();
-  void LoadSettings();
 
   void SetLayoutComplex(bool is_complex);
   void AddWidget(const QString& name, QWidget* widget);
@@ -76,7 +75,6 @@ private:
   void OnLoadProfilePressed();
   void OnSaveProfilePressed();
   void OnDefaultFieldsPressed();
-  void OnProfileChanged(int index);
   void OnDeviceChanged(int index);
 
   ControllerEmu::EmulatedController* m_controller = nullptr;
diff --git a/Source/Core/DolphinQt2/Settings.h b/Source/Core/DolphinQt2/Settings.h
index ca953b2d04..6283ecba27 100644
--- a/Source/Core/DolphinQt2/Settings.h
+++ b/Source/Core/DolphinQt2/Settings.h
@@ -8,7 +8,6 @@
 #include <QVector>
 
 #include "Common/NonCopyable.h"
-#include "Core/HW/SI/SI.h"
 
 namespace DiscIO
 {
@@ -30,12 +29,10 @@ public:
   QString GetProfilesDir() const;
   QVector<QString> GetProfiles(const InputConfig* config) const;
   QString GetProfileINIPath(const InputConfig* config, const QString& name) const;
-  bool IsInDevelopmentWarningEnabled() const;
 
   // GameList
   QStringList GetPaths() const;
   void AddPath(const QString& path);
-  void SetPaths(const QStringList& paths);
   void RemovePath(const QString& path);
   bool GetPreferredView() const;
   void SetPreferredView(bool table);