Remove IterativeRobot templates (#2011)

With the class being deprecated, new projects shouldn't be created with it

wpilibjExamples/src/main/java/edu/wpi/first/wpilibj/templates/iterative/Main.java

@@ -1,29 +0,0 @@
-/*----------------------------------------------------------------------------*/
-/* Copyright (c) 2018 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.                                                               */
-/*----------------------------------------------------------------------------*/
-
-package edu.wpi.first.wpilibj.templates.iterative;
-
-import edu.wpi.first.wpilibj.RobotBase;
-
-/**
- * Do NOT add any static variables to this class, or any initialization at all.
- * Unless you know what you are doing, do not modify this file except to
- * change the parameter class to the startRobot call.
- */
-public final class Main {
-  private Main() {
-  }
-
-  /**
-   * Main initialization function. Do not perform any initialization here.
-   *
-   * <p>If you change your main robot class, change the parameter type.
-   */
-  public static void main(String... args) {
-    RobotBase.startRobot(Robot::new);
-  }
-}

wpilibjExamples/src/main/java/edu/wpi/first/wpilibj/templates/iterative/Robot.java

@@ -1,99 +0,0 @@
-/*----------------------------------------------------------------------------*/
-/* 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.                                                               */
-/*----------------------------------------------------------------------------*/
-
-package edu.wpi.first.wpilibj.templates.iterative;
-
-import edu.wpi.first.wpilibj.IterativeRobot;
-import edu.wpi.first.wpilibj.smartdashboard.SendableChooser;
-import edu.wpi.first.wpilibj.smartdashboard.SmartDashboard;
-
-/**
- * The VM is configured to automatically run this class, and to call the
- * functions corresponding to each mode, as described in the IterativeRobot
- * documentation. If you change the name of this class or the package after
- * creating this project, you must also update the build.gradle file in the
- * project.
- */
-@SuppressWarnings("deprecation")
-public class Robot extends IterativeRobot {
-  private static final String kDefaultAuto = "Default";
-  private static final String kCustomAuto = "My Auto";
-  private String m_autoSelected;
-  private final SendableChooser<String> m_chooser = new SendableChooser<>();
-
-  /**
-   * This function is run when the robot is first started up and should be
-   * used for any initialization code.
-   */
-  @Override
-  public void robotInit() {
-    m_chooser.setDefaultOption("Default Auto", kDefaultAuto);
-    m_chooser.addOption("My Auto", kCustomAuto);
-    SmartDashboard.putData("Auto choices", m_chooser);
-  }
-
-  /**
-   * This function is called every robot packet, no matter the mode. Use
-   * this for items like diagnostics that you want ran during disabled,
-   * autonomous, teleoperated and test.
-   *
-   * <p>This runs after the mode specific periodic functions, but before
-   * LiveWindow and SmartDashboard integrated updating.
-   */
-  @Override
-  public void robotPeriodic() {
-  }
-
-  /**
-   * This autonomous (along with the chooser code above) shows how to select
-   * between different autonomous modes using the dashboard. The sendable
-   * chooser code works with the Java SmartDashboard. If you prefer the
-   * LabVIEW Dashboard, remove all of the chooser code and uncomment the
-   * getString line to get the auto name from the text box below the Gyro
-   *
-   * <p>You can add additional auto modes by adding additional comparisons to
-   * the switch structure below with additional strings. If using the
-   * SendableChooser make sure to add them to the chooser code above as well.
-   */
-  @Override
-  public void autonomousInit() {
-    m_autoSelected = m_chooser.getSelected();
-    // autoSelected = SmartDashboard.getString("Auto Selector",
-    // defaultAuto);
-    System.out.println("Auto selected: " + m_autoSelected);
-  }
-
-  /**
-   * This function is called periodically during autonomous.
-   */
-  @Override
-  public void autonomousPeriodic() {
-    switch (m_autoSelected) {
-      case kCustomAuto:
-        // Put custom auto code here
-        break;
-      case kDefaultAuto:
-      default:
-        // Put default auto code here
-        break;
-    }
-  }
-
-  /**
-   * This function is called periodically during operator control.
-   */
-  @Override
-  public void teleopPeriodic() {
-  }
-
-  /**
-   * This function is called periodically during test mode.
-   */
-  @Override
-  public void testPeriodic() {
-  }
-}

wpilibjExamples/src/main/java/edu/wpi/first/wpilibj/templates/templates.json

@@ -1,14 +1,4 @@
 [
-  {
-    "name": "Iterative Robot",
-    "description": "Iterative style",
-    "tags": [
-      "Iterative"
-    ],
-    "foldername": "iterative",
-    "gradlebase": "java",
-    "mainclass": "Main"
-  },
   {
     "name": "Timed Robot",
     "description": "Timed style",