sm8450-common: Drop default usb config from vendor.prop

Change-Id: I95771674d0fae0a98320e66c4813cdf9def7a464

properties/vendor.prop

@@ -185,7 +185,6 @@ persist.vendor.rcs.singlereg.feature=1
 persist.vendor.ssr.restart_level=ALL_ENABLE
 
 # USB
-persist.sys.usb.config=none
 sys.usb.mtp.batchcancel=1
 vendor.usb.diag.func.name=ffs
 vendor.usb.dpl.inst.name=dpl