squashing the commits

Author: bhavyada

robot_controllers/src/diff_drive_base.cpp

@@ -131,7 +131,6 @@ int DiffDriveBaseController::init(ros::NodeHandle& nh, ControllerManager* manage
 
   // Subscribe to imu
   imu_sub_ = nh.subscribe<sensor_msgs::Imu>("/imu",1, &DiffDriveBaseController::imuCallback, this);
-  ROS_INFO("Subscribing to IMU");
 
   // Publish odometry & tf
   ros::NodeHandle n;