Revert "dts: msm8974: Add dma channels for blsp2_i2c1 node"

Revert this commit to fix regressions on non-dragonboard MSM8974 boards.
This will be put back in after the correct fixes to the bam driver are
accepted that allow remote processor control of the main control registers.

This reverts commit 0a5d0f85bba61d8643d78869c7c4214d6c2a7ce6.

Signed-off-by: Andy Gross <[e-mail]>

arch/arm/boot/dts/qcom-msm8974.dtsi

···
 			clock-names = "core", "iface";
 			#address-cells = <1>;
 			#size-cells = <0>;
-			dmas = <&blsp2_dma 20>, <&blsp2_dma 21>;
-			dma-names = "tx", "rx";
 		};
 
 		spmi_bus: spmi@fc4cf000 {