common.xml: revert description of MAV_CMD_DO_CHANGE_SPEED

message_definitions/v1.0/common.xml

@@ -1042,7 +1042,7 @@
         <param index="7">Empty</param>
       </entry>
       <entry value="178" name="MAV_CMD_DO_CHANGE_SPEED" hasLocation="false" isDestination="false">
-        <description>Change speed and/or throttle set points. The value persists until it is overridden or there is a mode change</description>
+        <description>Change speed and/or throttle set points</description>
         <param index="1" label="Speed Type" enum="SPEED_TYPE">Speed type of value set in param2 (such as airspeed, ground speed, and so on)</param>
         <param index="2" label="Speed" units="m/s" minValue="-2">Speed (-1 indicates no change, -2 indicates return to default vehicle speed)</param>
         <param index="3" label="Throttle" units="%" minValue="-2">Throttle (-1 indicates no change, -2 indicates return to default vehicle throttle value)</param>