drm/amd/display: revert max lb use by default for n10

This is causing a pstate change underflow regression for
unknown reason
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c

@@ -619,7 +619,6 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.recovery_enabled = false, /*enable this by default after testing.*/
 		.max_downscale_src_width = 3840,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
@@ -631,7 +630,6 @@ static const struct dc_debug_options debug_defaults_diags = {
 		.disable_pplib_clock_request = true,
 		.disable_pplib_wm_range = true,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static void dcn10_dpp_destroy(struct dpp **dpp)

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

@@ -1075,7 +1075,6 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.scl_reset_length10 = true,
 		.sanity_checks = false,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
@@ -1092,7 +1091,6 @@ static const struct dc_debug_options debug_defaults_diags = {
 		.scl_reset_length10 = true,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
 		.enable_tri_buf = true,
-		.use_max_lb = true
 };
 
 void dcn20_dpp_destroy(struct dpp **dpp)