dts: stm32f410: No SDMMC available

Remove SDMMC from f410 soc variant since it's not actually available.
Do this in package variant as F410 is included by f412 who has a SDMMC.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>

Author: erwango

dts/arm/st/f4/stm32f410Xb.dtsi

@@ -7,6 +7,8 @@
 #include <mem.h>
 #include <st/f4/stm32f410.dtsi>
 
+/delete-node/ &sdmmc1;
+
 / {
 	sram0: memory@20000000 {
 		reg = <0x20000000 DT_SIZE_K(32)>;