Revert "stm32f4: fix serial output"

As per the author, we don't need this patch really since the other patch
"stm32f4: fix serial output" superseded it.

This reverts commit 85e5f5b7a7f8d889271f94791606cde62d81d53f.

Signed-off-by: Tom Rini <trini@konsulko.com>
1 file changed