ARM: dts: msm: Remove CDP and MTP device tree files on sm6150

sm6150 does not have MTP and CDP platforms. Remove the device
tree files corresponding to CDP and MTP.

Change-Id: Idd1d77e3b209f83ee125e0169cf859b4600b7b9b
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>