[wpimath] Remove encoder reset comments on Swerve, Mecanum Odometry and Pose Estimation (#4643)

In both of these cases, encoder resets are not required for normal use.

wpimath/src/main/java/edu/wpi/first/math/estimator/MecanumDrivePoseEstimator.java

@@ -197,8 +197,6 @@ public class MecanumDrivePoseEstimator {
   /**
    * Resets the robot's position on the field.
    *
-   * <p>You NEED to reset your encoders (to zero) when calling this method.
-   *
    * <p>The gyroscope angle does not need to be reset in the user's robot code. The library
    * automatically takes care of offsetting the gyro angle.
    *

wpimath/src/main/java/edu/wpi/first/math/estimator/SwerveDrivePoseEstimator.java

@@ -244,8 +244,6 @@ public class SwerveDrivePoseEstimator<States extends Num, Inputs extends Num, Ou
   /**
    * Resets the robot's position on the field.
    *
-   * <p>You NEED to reset your encoders (to zero) when calling this method.
-   *
    * <p>The gyroscope angle does not need to be reset in the user's robot code. The library
    * automatically takes care of offsetting the gyro angle.
    *

wpimath/src/main/java/edu/wpi/first/math/kinematics/SwerveDriveOdometry.java

@@ -75,6 +75,8 @@ public class SwerveDriveOdometry {
    * <p>The gyroscope angle does not need to be reset here on the user's robot code. The library
    * automatically takes care of offsetting the gyro angle.
    *
+   * <p>Similarly, module positions do not need to be reset in user code.
+   *
    * @param pose The position on the field that your robot is at.
    * @param gyroAngle The angle reported by the gyroscope.
    * @param modulePositions The wheel positions reported by each module.

wpimath/src/main/native/include/frc/estimator/MecanumDrivePoseEstimator.h

@@ -108,8 +108,6 @@ class WPILIB_DLLEXPORT MecanumDrivePoseEstimator {
   /**
    * Resets the robot's position on the field.
    *
-   * <p>You NEED to reset your encoders (to zero) when calling this method.
-   *
    * <p>The gyroscope angle does not need to be reset in the user's robot code.
    * The library automatically takes care of offsetting the gyro angle.
    *

wpimath/src/main/native/include/frc/estimator/SwerveDrivePoseEstimator.h

@@ -138,8 +138,6 @@ class SwerveDrivePoseEstimator {
   /**
    * Resets the robot's position on the field.
    *
-   * You NEED to reset your encoders (to zero) when calling this method.
-   *
    * The gyroscope angle does not need to be reset in the user's robot code.
    * The library automatically takes care of offsetting the gyro angle.
    *