[d3d9] Remove allowDiscard hack

dxvk.conf

@@ -554,16 +554,6 @@
 
 # d3d9.forceAspectRatio = ""
 
-# Allow Discard
-#
-# Allow the discard lock flag to be used
-# Useful if some apps use this incorrectly.
-#
-# Supported values:
-# - True/False
-
-# d3d9.allowDiscard = True
-
 # Enumerate by Displays
 #
 # Whether we should enumerate D3D9 adapters by display (windows behaviour)

src/d3d9/d3d9_device.cpp

@@ -4792,9 +4792,6 @@ namespace dxvk {
     if (unlikely(ppbData == nullptr))
       return D3DERR_INVALIDCALL;
 
-    if (!m_d3d9Options.allowDiscard)
-      Flags &= ~D3DLOCK_DISCARD;
-
     auto& desc = *pResource->Desc();
 
     // Ignore DISCARD if NOOVERWRITE is set

src/d3d9/d3d9_options.cpp

@@ -64,7 +64,6 @@ namespace dxvk {
     this->forceSwapchainMSAA            = config.getOption<int32_t>     ("d3d9.forceSwapchainMSAA",            -1);
     this->forceSampleRateShading        = config.getOption<bool>        ("d3d9.forceSampleRateShading",        false);
     this->forceAspectRatio              = config.getOption<std::string> ("d3d9.forceAspectRatio",              "");
-    this->allowDiscard                  = config.getOption<bool>        ("d3d9.allowDiscard",                  true);
     this->enumerateByDisplays           = config.getOption<bool>        ("d3d9.enumerateByDisplays",           true);
     this->longMad                       = config.getOption<bool>        ("d3d9.longMad",                       false);
     this->apitraceMode                  = config.getOption<bool>        ("d3d9.apitraceMode",                  false);

src/d3d9/d3d9_options.h

@@ -116,9 +116,6 @@ namespace dxvk {
     /// Forces sample rate shading
     bool forceSampleRateShading;
 
-    /// Allow D3DLOCK_DISCARD
-    bool allowDiscard;
-
     /// Enumerate adapters by displays
     bool enumerateByDisplays;