Remove deprecated free() calls (#1925)

Replaced with the standard close()

cscore/src/main/java/edu/wpi/cscore/VideoListener.java

@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------*/
-/* Copyright (c) 2016-2018 FIRST. All Rights Reserved.                        */
+/* Copyright (c) 2016-2019 FIRST. All Rights Reserved.                        */
 /* Open Source Software - may be modified and shared by FRC teams. The code   */
 /* must be accompanied by the FIRST BSD license file in the root directory of */
 /* the project.                                                               */
@@ -27,11 +27,6 @@ public class VideoListener implements AutoCloseable {
     m_handle = CameraServerJNI.addListener(listener, eventMask, immediateNotify);
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   @Override
   public synchronized void close() {
     if (m_handle != 0) {

cscore/src/main/java/edu/wpi/cscore/VideoSink.java

@@ -46,11 +46,6 @@ public class VideoSink implements AutoCloseable {
     m_handle = handle;
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   @Override
   public synchronized void close() {
     if (m_handle != 0) {
@@ -186,7 +181,7 @@ public class VideoSink implements AutoCloseable {
    * @return Connected source; nullptr if no source connected.
    */
   public VideoSource getSource() {
-    // While VideoSource.free() will call releaseSource(), getSinkSource()
+    // While VideoSource.close() will call releaseSource(), getSinkSource()
     // increments the internal reference count so this is okay to do.
     return new VideoSource(CameraServerJNI.getSinkSource(m_handle));
   }

cscore/src/main/java/edu/wpi/cscore/VideoSource.java

@@ -81,11 +81,6 @@ public class VideoSource implements AutoCloseable {
     m_handle = handle;
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   @Override
   public synchronized void close() {
     if (m_handle != 0) {

ntcore/src/main/java/edu/wpi/first/networktables/NetworkTableInstance.java

@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------*/
-/* Copyright (c) 2017-2018 FIRST. All Rights Reserved.                        */
+/* Copyright (c) 2017-2019 FIRST. All Rights Reserved.                        */
 /* Open Source Software - may be modified and shared by FRC teams. The code   */
 /* must be accompanied by the FIRST BSD license file in the root directory of */
 /* the project.                                                               */
@@ -60,11 +60,6 @@ public final class NetworkTableInstance implements AutoCloseable {
     m_handle = handle;
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   /**
    * Destroys the instance (if created by {@link #create()}).
    */

ntcore/src/main/java/edu/wpi/first/networktables/RpcCall.java

@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------*/
-/* Copyright (c) 2017-2018 FIRST. All Rights Reserved.                        */
+/* Copyright (c) 2017-2019 FIRST. All Rights Reserved.                        */
 /* Open Source Software - may be modified and shared by FRC teams. The code   */
 /* must be accompanied by the FIRST BSD license file in the root directory of */
 /* the project.                                                               */
@@ -22,11 +22,6 @@ public final class RpcCall implements AutoCloseable {
     m_call = call;
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   /**
    * Cancels the result if no other action taken.
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/I2C.java

@@ -53,11 +53,6 @@ public class I2C implements AutoCloseable {
     HAL.report(tResourceType.kResourceType_I2C, deviceAddress);
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   @Override
   public void close() {
     I2CJNI.i2CClose(m_port);

wpilibj/src/main/java/edu/wpi/first/wpilibj/RobotBase.java

@@ -105,10 +105,6 @@ public abstract class RobotBase implements AutoCloseable {
     return m_threadId;
   }
 
-  @Deprecated
-  public void free() {
-  }
-
   @Override
   public void close() {
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/RobotDrive.java

@@ -653,11 +653,6 @@ public class RobotDrive extends MotorSafety implements AutoCloseable {
     m_maxOutput = maxOutput;
   }
 
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   /**
    * Free the speed controllers if they were allocated locally.
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/SPI.java

@@ -50,12 +50,6 @@ public class SPI implements AutoCloseable {
     HAL.report(tResourceType.kResourceType_SPI, port.value);
   }
 
-
-  @Deprecated
-  public void free() {
-    close();
-  }
-
   @Override
   public void close() {
     if (m_accum != null) {