clock-8x60: Remove MDP clock freqs not used in original panel driver

In the original 3.0.16 panel driver, HTC specified a set of MDP clocks to use for scaling: 59MHz, 128MHz, 160MHz, and 200MHz.

This fixes the visual glitch where the very leftmost column of pixels copying what the very rightmost column of pixels displays.

Signed-off-by: Sultanxda <sultanxda@gmail.com>