Revert "NSIS: add a couple of uninstaller checkboxes"

This reverts commit d69c9e08af.

While this is a nice improvement, it requires other patches to work
correctly which go beyond what I'm comfortable having in a "quick update
to 4.5".

packaging/windows/subsurface.nsi.in

@@ -62,58 +62,6 @@
 
     Var StartMenuFolder
 
-#--------------------------------
-# Custom pages
-
-# Maintain some checkboxes in the uninstall dialog
-Var UninstallDialog
-Var Checkbox_Reg
-Var Checkbox_Reg_State
-Var Checkbox_UserDir
-Var Checkbox_UserDir_State
-Var UserDir
-
-Function un.UninstallOptions
-    nsDialogs::Create 1018
-    Pop $UninstallDialog
-    ${If} $UninstallDialog == error
-        Abort
-    ${EndIf}
-
-    StrCpy $Checkbox_Reg_State 0
-    StrCpy $Checkbox_UserDir 0
-
-    # if this key exists Subsurface was run at least once
-    ReadRegStr $UserDir HKCU "Software\Subsurface\Subsurface\GeneralSettings" "default_directory"
-    ${If} $UserDir != ""
-        # checkbox for removing registry entries
-        ${NSD_CreateCheckbox} 0 0u 100% 20u "Registry entries (HKEY_CURRENT_USER\Software\Subsurface)"
-        Pop $Checkbox_Reg
-        GetFunctionAddress $0 un.OnCheckbox_Reg
-        nsDialogs::OnClick $Checkbox_Reg $0
-
-        ${If} ${FileExists} "$UserDir\*.*"
-            # checkbox for removing the user directory
-            ${NSD_CreateCheckbox} 0 20u 100% 20u "User directory ($UserDir)"
-            Pop $Checkbox_UserDir
-            GetFunctionAddress $0 un.OnCheckbox_UserDir
-            nsDialogs::OnClick $Checkbox_UserDir $0
-       ${EndIf}
-    ${EndIf}
-
-    nsDialogs::Show
-FunctionEnd
-
-Function un.OnCheckbox_Reg
-    ${NSD_GetState} $Checkbox_Reg $Checkbox_Reg_State
-FunctionEnd
-Function un.OnCheckbox_UserDir
-    ${NSD_GetState} $Checkbox_UserDir $Checkbox_UserDir_State
-    ${If} $Checkbox_UserDir_State == 1
-       MessageBox MB_OK "WARNING!$\nMake sure you don't have important files in the user directory!"
-    ${EndIf}
-FunctionEnd
-
 #--------------------------------
 # Pages
 
@@ -125,7 +73,6 @@ FunctionEnd
 
     # Uninstaller pages
     !insertmacro MUI_UNPAGE_CONFIRM
-    UninstPage custom un.UninstallOptions
     !insertmacro MUI_UNPAGE_INSTFILES
 
 #--------------------------------
@@ -216,19 +163,8 @@ Section "Uninstall"
     RMDir "$SMPROGRAMS\$StartMenuFolder"
     Delete "$DESKTOP\Subsurface.lnk"
 
-    # remove the registry entires
-    ${If} $Checkbox_Reg_State == 1
-        DeleteRegKey HKCU "Software\Subsurface"
-    ${EndIf}
-
-    # remove the user directory
-    ${If} $Checkbox_UserDir_State == 1
-    ${AndIf} $UserDir != ""
-    ${AndIf} ${FileExists} "$UserDir\*.*"
-        RMDir /r $UserDir
-    ${EndIf}
-
-    # remove the uninstaller entry
+    # Remove registry entries
+    DeleteRegKey /ifempty HKCU "Software\Subsurface"
     DeleteRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Subsurface"
 
 SectionEnd