Revert "g: minor fix in putting a character into usb_console tx queue"
Revert "g: minor fix in putting a character into usb_console tx queue"

The patch cases slow-down in CR50 uart when RDD is not connected.

BUG=None
BRANCH=None
TEST=manually ran on bob

This reverts commit 2d62dee3a8f32499bab8f4b95b84a9eaeea919dc.

Change-Id: I92c4b8e7d065a01dc2c398778351db207ab28ca5
Signed-off-by: Namyoon Woo <e8732cefb861f07768f47df788a8e8eb75efc09a@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1666318
Reviewed-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec