Revert "DTS: bcm2712: enable SD slot CQE by default on Pi 5"

This reverts commit 216df57.

See #6349

There is an unknown hang when issuing flush commands that may be
triggered when IO is pending. Revert while investigation takes place.

Author: P33M

arch/arm/boot/dts/overlays/README

@@ -378,9 +378,9 @@ Params:
                                 non-lite SKU of CM4).
                                 (default "on")
 
-        sd_cqe                  Set to "off" to disable Command Queueing if you
-                                have an incompatible Class A2 SD card
-                                (Pi 5 only, default "on")
+        sd_cqe                  Use to enable Command Queueing on the SD
+                                interface for faster Class A2 card performance
+                                (Pi 5 only, default "off")
 
         sd_overclock            Clock (in MHz) to use when the MMC framework
                                 requests 50MHz

arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts

@@ -363,7 +363,6 @@ dpi_16bit_gpio2:        &rp1_dpi_16bit_gpio2        { };
 	sd-uhs-sdr50;
 	sd-uhs-ddr50;
 	sd-uhs-sdr104;
-	supports-cqe;
 	cd-gpios = <&gio_aon 5 GPIO_ACTIVE_LOW>;
 	//no-1-8-v;
 	status = "okay";