arm64: dts: qcom: msm8998: get rid of test clock

The test clock apparently it's not used by anyone upstream. Remove it.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221228185237.3111988-17-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/msm8998.dtsi

@@ -2398,8 +2398,7 @@ mmcc: clock-controller@c8c0000 {
 				      "dsi1byte",
 				      "hdmipll",
 				      "dplink",
-				      "dpvco",
-				      "core_bi_pll_test_se";
+				      "dpvco";
 			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
 				 <&gcc GCC_MMSS_GPLL0_CLK>,
 				 <0>,
@@ -2408,7 +2407,6 @@ mmcc: clock-controller@c8c0000 {
 				 <0>,
 				 <0>,
 				 <0>,
-				 <0>,
 				 <0>;
 		};