arm64: dts: qcom: qrb5165-rb5: remove useless enablement of mdss_mdp

The MDP/DPU device is not disabled by default since the commit
0c25dad9 ("arm64: dts: qcom: sm8250: Don't disable MDP explicitly"),
so there is not point in enabling it in the board DTS file.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230531011623.3808538-5-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/qrb5165-rb5.dts

@@ -639,10 +639,6 @@ &mdss {
 	status = "okay";
 };
 
-&mdss_mdp {
-	status = "okay";
-};
-
 &pm8150_adc {
 	xo-therm@4c {
 		reg = <ADC5_XO_THERM_100K_PU>;