Remove redundant memclear

drmMalloc will zero out the memory for us

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
diff --git a/xf86drm.c b/xf86drm.c
index 2ac3f26..879f85b 100644
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -866,8 +866,6 @@
     drmVersionPtr retval;
     drm_version_t *version = drmMalloc(sizeof(*version));
 
-    memclear(*version);
-
     if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) {
         drmFreeKernelVersion(version);
         return NULL;