egl/dri2: Unify the style of function pointer calls in structs

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
[Emil Velikov: address platform_surfaceless]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index cf72a7e..63e29fc 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1549,9 +1549,9 @@
       assert(!"Unexpected texture target in dri2_bind_tex_image()");
    }
 
-   (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
-                                          target, format,
-                                          dri_drawable);
+   dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
+                                       target, format,
+                                       dri_drawable);
 
    return EGL_TRUE;
 }
@@ -1582,9 +1582,8 @@
 
    if (dri2_dpy->tex_buffer->base.version >= 3 &&
        dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
-      (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
-                                                target,
-                                                dri_drawable);
+      dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
+                                             target, dri_drawable);
    }
 
    return EGL_TRUE;