net/mlx5e: Remove redundant check in CQE recovery flow of tx reporter

Remove check of recovery bit, in the beginning of the CQE recovery
function. This test is already performed right before the reporter
is invoked, when CQE error is detected.

Fixes: de8650a8

 ("net/mlx5e: Add tx reporter support")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>