Revert "arm64: dts: walleye: set fg-empty-voltage to 3.2V"

This reverts commit e98abb14.

Bug: 73188550
Change-Id: I238f976800fdead1d11fc983e655c4f65d999f6c
Signed-off-by: Thierry Strudel <tstrudel@google.com>

arch/arm64/boot/dts/htc/batterydata-walleye.dtsi

@@ -18,7 +18,6 @@
 	qcom,fg-chg-term-current = <50>;
 	qcom,fg-sys-term-current = <(-405)>;
 	qcom,fg-cutoff-voltage = <3400>;
-	qcom,fg-empty-voltage = <3200>;
 	qcom,hold-soc-while-full;
 	qcom,linearize-soc;
 	qcom,cl-max-decrement = <5>;