Revert "ARM: at91/dt: sama5d4ek: add DT for ISI + ov2640"

This reverts commit d8cf52a.

Author: Codrin Ciubotariu

arch/arm/boot/dts/Makefile

@@ -71,7 +71,6 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-sama5d4_ma5d4evk.dtb \
 	at91-sama5d4_xplained.dtb \
 	at91-sama5d4ek.dtb \
-	at91-sama5d4ek_isi.dtb \
 	at91-vinco.dtb
 dtb-$(CONFIG_ARCH_ATLAS6) += \
 	atlas6-evb.dtb