samples: modules: tflite-micro: remove incorrect check

sensor cannot be null because it is initialized with DEVICE_DT_GET_ONE,
which always resolves to a device. The deleted check triggered a
compiler warning ("warning: the address of '__device_dts_ord_23' will
never be NULL").

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

samples/modules/tflite-micro/magic_wand/src/accelerometer_handler.cpp

@@ -40,13 +40,8 @@ TfLiteStatus SetupAccelerometer()
 		return kTfLiteApplicationError;
 	}
 
-	if (sensor == NULL) {
-		MicroPrintf("Failed to get accelerometer, name: %s\n",
-				    sensor->name);
-	} else {
-		MicroPrintf("Got accelerometer, name: %s\n",
-				    sensor->name);
-	}
+	MicroPrintf("Got accelerometer, name: %s\n", sensor->name);
+
 	return kTfLiteOk;
 }