IMU speedup by shorting the temp calculation. If someone bothers to temp calibrate their sensors, they'll need to edit this shortcut.

git-svn-id: https://arducopter.googlecode.com/svn/trunk@2677 f9c3cf11-9bcb-44bc-f272-b75c42450872

libraries/AP_IMU/AP_IMU_Oilpan.cpp

@@ -222,12 +222,12 @@ AP_IMU_Oilpan::_sensor_compensation(uint8_t channel, int temperature) const
     // do gyro temperature compensation
     if (channel < 3) {
 
-		//return 1658;
-       //*
+		return 1658;
+       /*
         return  _gyro_temp_curve[channel][0] +
                 _gyro_temp_curve[channel][1] * temperature +
                 _gyro_temp_curve[channel][2] * temperature * temperature;
-       // */
+       //*/
     }
 
     // do fixed-offset accelerometer compensation