mb/google/brask/variants/brask: remove fan setting

The brask doesn't include a real chassis so we don't need to configure
the fan setting in the overridetree.cb. Instead, we can leave the fan
running at full speed after the device boot up.

BUG=b:259643676
BRANCH=firmware-brya-14505.B
TEST=flashed the bios to the device and make sure the fan spinned
     at full speed.

Change-Id: I6075b6171ca4d7b907679efd0ce7e355759385bc
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69791
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Derek Huang <derekhuang@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

src/mainboard/google/brya/variants/brask/overridetree.cb

@@ -67,24 +67,6 @@ chip soc/intel/alderlake
 					[3] = {   8,  500 }
 				}"
 
-				## Fan Performance Control (Percent, Speed, Noise, Power)
-				register "controls.fan_perf" = "{
-					[0] = {  90, 6700, 220, 2200, },
-					[1] = {  80, 5800, 180, 1800, },
-					[2] = {  70, 5000, 145, 1450, },
-					[3] = {  60, 4900, 115, 1150, },
-					[4] = {  50, 3838,  90,  900, },
-					[5] = {  40, 2904,  55,  550, },
-					[6] = {  30, 2337,  30,  300, },
-					[7] = {  20, 1608,  15,  150, },
-					[8] = {  10,  800,  10,  100, },
-					[9] = {   0,    0,   0,   50, }
-				}"
-
-				## Fan options
-				register "options.fan.fine_grained_control" = "1"
-				register "options.fan.step_size" = "2"
-
 				device generic 0 alias dptf_policy on end
 			end
 		end