disp: msm: dp: remove function get_min_req_link_rate

Remove unused function dp_panel_get_min_req_link_rate.

Change-Id: I91c0860074d1b8e121bf3aef35520e6ffce8552a
Signed-off-by: Sankeerth Billakanti <sbillaka@codeaurora.org>

msm/dp/dp_panel.h

@@ -142,7 +142,6 @@ struct dp_panel {
 	int (*hw_cfg)(struct dp_panel *dp_panel, bool enable);
 	int (*read_sink_caps)(struct dp_panel *dp_panel,
 		struct drm_connector *connector, bool multi_func);
-	u32 (*get_min_req_link_rate)(struct dp_panel *dp_panel);
 	u32 (*get_mode_bpp)(struct dp_panel *dp_panel, u32 mode_max_bpp,
 			u32 mode_pclk_khz);
 	int (*get_modes)(struct dp_panel *dp_panel,