qualcommax: ipq50xx: ess-switch: Remove AHB reset quirk

qualcommax: ipq50xx: ess-switch: Remove AHB reset quirk

The AHB reset quirk was added to the ESS switch driver to work around an
issue a fixed link wasn't setup properly. However, this workaround is no
longer needed as the actual issue was in the QCA8K DSA switch driver on
the other end which has been fixed.

This reverts commit 273bd3463c74 ("qualcommax: ipq50xx: prepare for UNIPHY reset fix")

Signed-off-by: George Moussalem <george.moussalem@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/23654
Signed-off-by: Robert Marko <robimarko@gmail.com>