dts: bindings: video: dcmi: remove the dma in board dts example

With the addition of the dma property within the soc dtsi, it is
no more necessary to add it within the board dts.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>

Author: Alain Volmat

dts/bindings/video/st,stm32-dcmi.yaml

@@ -15,9 +15,6 @@ description: |
                   &dcmi_d0_pc6 &dcmi_d1_pc7 &dcmi_d2_pe0 &dcmi_d3_pe1
                   &dcmi_d4_pe4 &dcmi_d5_pd3 &dcmi_d6_pe5 &dcmi_d7_pe6>;
       pinctrl-names = "default";
-      dmas = <&dma1 0 75 (STM32_DMA_PERIPH_TO_MEMORY | STM32_DMA_PERIPH_NO_INC |
-              STM32_DMA_MEM_INC | STM32_DMA_PERIPH_8BITS | STM32_DMA_MEM_32BITS |
-              STM32_DMA_PRIORITY_HIGH) STM32_DMA_FIFO_1_4>;
 
       port {
         dcmi_ep_in: endpoint {