ptp: remove the .adjfreq interface function

Now that all drivers have been converted to .adjfine, we can remove the
.adjfreq from the interface structure.

Signed-off-by: Jacob Keller <[e-mail]>
Cc: Richard Cochran <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/ptp/ptp_clock.c

···
 		long ppb = scaled_ppm_to_ppb(tx->freq);
 		if (ppb > ops->max_adj || ppb < -ops->max_adj)
 			return -ERANGE;
-		if (ops->adjfine)
-			err = ops->adjfine(ops, tx->freq);
-		else
-			err = ops->adjfreq(ops, ppb);
+		err = ops->adjfine(ops, tx->freq);
 		ptp->dialed_frequency = tx->freq;
 	} else if (tx->modes & ADJ_OFFSET) {
 		if (ops->adjphase) {

include/linux/ptp_clock_kernel.h

···
  *            nominal frequency in parts per million, but with a
  *            16 bit binary fractional field.
  *
- * @adjfreq:  Adjusts the frequency of the hardware clock.
- *            This method is deprecated.  New drivers should implement
- *            the @adjfine method instead.
- *            parameter delta: Desired frequency offset from nominal frequency
- *            in parts per billion
- *
  * @adjphase:  Adjusts the phase offset of the hardware clock.
  *             parameter delta: Desired change in nanoseconds.
  *
···
 	int pps;
 	struct ptp_pin_desc *pin_config;
 	int (*adjfine)(struct ptp_clock_info *ptp, long scaled_ppm);
-	int (*adjfreq)(struct ptp_clock_info *ptp, s32 delta);
 	int (*adjphase)(struct ptp_clock_info *ptp, s32 phase);
 	int (*adjtime)(struct ptp_clock_info *ptp, s64 delta);
 	int (*gettime64)(struct ptp_clock_info *ptp, struct timespec64 *ts);