net: stmmac: Remove break after a return

Since break is not useful after a return, remove it.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Tiezhu Yang 2019-10-09 22:29:00 +08:00 • committed by Jakub Kicinski
commit 5e96cd3302