ixgbe: DCB, remove unneeded ixgbe_dcb_txq_to_tc() routine
ixgbe: DCB, remove unneeded ixgbe_dcb_txq_to_tc() routine

The ixgbe_dcb_txq_to_tc() routine was used to map TX rings to
a DCB traffic class. Now that a tx_ring has a DCB traffic class
associated with it this routine is no longer needed.

Signed-off-by: John Fastabend <06228589568acf528fa1984e09626513a30b66ed@intel.com>
Tested-by: Ross Brattain <ddebe0db9486ace8e4376a8be8a0aaa0090ac511@intel.com>
Signed-off-by: Jeff Kirsher <87e35f5be20bb3e67f4ba6b86f5f6be3085b1b3a@intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas