Revert "thermal: add backup shutdown protection"

This reverts commit 6d4d98c2.

Reason for revert: b/196108695

Bug: 196108695
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I038a7c559c23069f6a9529f21895d80e10cbd86a

arch/arm64/boot/dts/google/gs101-raviole-thermal.dtsi

@@ -53,15 +53,10 @@
 		thermal-sensors = <&gs101_tm1 1>;
 		trips {
 			trip_config1: trip-config1 {
-				temperature = <56000>;
+				temperature = <125000>;
 				hysteresis = <1000>;
 				type = "passive";
 			};
-			backup_shutdown: backup-shutdown {
-				temperature = <57000>;
-				hysteresis = <1000>;
-				type = "critical";
-			};
 		};
 	};
 	qi_therm {