driconf: drop param for setting default gpu vendor id in DRI_CONF_FORCE_VK_VENDOR()

The macro was ignoring the param and hard-coding 0, and it doesn't make
much sense to allow drivers to override it by default, so remove the
appearance of the ability to do so.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29632>

src/intel/vulkan/anv_device.c

@@ -103,7 +103,7 @@ static const driOptionDescription anv_dri_options[] = {
       DRI_CONF_VK_X11_IGNORE_SUBOPTIMAL(false)
       DRI_CONF_LIMIT_TRIG_INPUT_RANGE(false)
       DRI_CONF_ANV_MESH_CONV_PRIM_ATTRS_TO_VERT_ATTRS(-2)
-      DRI_CONF_FORCE_VK_VENDOR(0)
+      DRI_CONF_FORCE_VK_VENDOR()
       DRI_CONF_FAKE_SPARSE(false)
 #if DETECT_OS_ANDROID && ANDROID_API_LEVEL >= 34
       DRI_CONF_VK_REQUIRE_ASTC(true)

src/nouveau/vulkan/nvk_instance.c

@@ -85,7 +85,7 @@ static const driOptionDescription nvk_dri_options[] = {
    DRI_CONF_SECTION_END
 
    DRI_CONF_SECTION_DEBUG
-      DRI_CONF_FORCE_VK_VENDOR(0)
+      DRI_CONF_FORCE_VK_VENDOR()
       DRI_CONF_VK_WSI_FORCE_SWAPCHAIN_TO_CURRENT_EXTENT(false)
       DRI_CONF_VK_X11_IGNORE_SUBOPTIMAL(false)
    DRI_CONF_SECTION_END

src/util/driconf.h

@@ -317,7 +317,7 @@
    DRI_CONF_OPT_B(ignore_discard_framebuffer, def, \
                   "Ignore glDiscardFramebuffer/glInvalidateFramebuffer, workaround for games that use it incorrectly")
 
-#define DRI_CONF_FORCE_VK_VENDOR(def) \
+#define DRI_CONF_FORCE_VK_VENDOR() \
    DRI_CONF_OPT_I(force_vk_vendor, 0, -1, 2147483647, "Override GPU vendor id")
 
 #define DRI_CONF_FAKE_SPARSE(def) \