egl: drop unused _EGLDriver from GetProcAddress()

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>

src/egl/drivers/dri2/egl_dri2.c

@@ -1898,7 +1898,7 @@ dri2_surface_get_dri_drawable(_EGLSurface *surf)
  * Called from eglGetProcAddress() via drv->GetProcAddress().
  */
 static _EGLProc
-dri2_get_proc_address(const _EGLDriver *drv, const char *procname)
+dri2_get_proc_address(const char *procname)
 {
    return _glapi_get_proc_address(procname);
 }

src/egl/main/egldriver.c

@@ -85,7 +85,7 @@ __eglMustCastToProperFunctionPointerType
 _eglGetDriverProc(const char *procname)
 {
    if (_eglDriver.GetProcAddress)
-      return _eglDriver.GetProcAddress(&_eglDriver, procname);
+      return _eglDriver.GetProcAddress(procname);
 
    return NULL;
 }

src/egl/main/egldriver.h

@@ -128,7 +128,7 @@ struct _egl_driver
    EGLBoolean (*WaitNative)(EGLint engine);
 
    /* this function may be called from multiple threads at the same time */
-   _EGLProc (*GetProcAddress)(const _EGLDriver *drv, const char *procname);
+   _EGLProc (*GetProcAddress)(const char *procname);
 
    _EGLImage *(*CreateImageKHR)(const _EGLDriver *drv, _EGLDisplay *disp,
                                 _EGLContext *ctx, EGLenum target,