ARM: dts: r8a7743: Remove legacy "renesas,rcar-thermal" compatibility

The thermal hardware description for the RZ/G1M SoC was added to its DTS
after the introduction of support for thermal zones, and included a
thermal-zones node from the beginning.

Hence there is no need to claim compatibility with
"renesas,rcar-thermal", which would be needed only for backwards
compatibility with kernels predating thermal zone support.

Fixes: 6c76b4f7 ("ARM: dts: r8a7743: Add thermal device to DT")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7743.dtsi

@@ -348,8 +348,7 @@ irqc: interrupt-controller@e61c0000 {
 
 		thermal: thermal@e61f0000 {
 			compatible = "renesas,thermal-r8a7743",
-				     "renesas,rcar-gen2-thermal",
-				     "renesas,rcar-thermal";
+				     "renesas,rcar-gen2-thermal";
 			reg = <0 0xe61f0000 0 0x10>, <0 0xe61f0100 0 0x38>;
 			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 522>;