egl: drop unused _EGLDriver from MesaGLInteropEGL{QueryDeviceInfo,ExportObject}()

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6241>
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index bdf7bc4..7698e32 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -2764,8 +2764,7 @@
 
 static int
 _eglLockDisplayInterop(EGLDisplay dpy, EGLContext context,
-                       _EGLDisplay **disp, const _EGLDriver **drv,
-                       _EGLContext **ctx)
+                       _EGLDisplay **disp, _EGLContext **ctx)
 {
 
    *disp = _eglLockDisplay(dpy);
@@ -2775,8 +2774,6 @@
       return MESA_GLINTEROP_INVALID_DISPLAY;
    }
 
-   *drv = (*disp)->Driver;
-
    *ctx = _eglLookupContext(context, *disp);
    if (!*ctx ||
        ((*ctx)->ClientAPI != EGL_OPENGL_API &&
@@ -2793,11 +2790,10 @@
                                 struct mesa_glinterop_device_info *out)
 {
    _EGLDisplay *disp;
-   const _EGLDriver *drv;
    _EGLContext *ctx;
    int ret;
 
-   ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
+   ret = _eglLockDisplayInterop(dpy, context, &disp, &ctx);
    if (ret != MESA_GLINTEROP_SUCCESS)
       return ret;
 
@@ -2816,11 +2812,10 @@
                              struct mesa_glinterop_export_out *out)
 {
    _EGLDisplay *disp;
-   const _EGLDriver *drv;
    _EGLContext *ctx;
    int ret;
 
-   ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
+   ret = _eglLockDisplayInterop(dpy, context, &disp, &ctx);
    if (ret != MESA_GLINTEROP_SUCCESS)
       return ret;