[wpimath] Remove duplicate WPIMathJNI class (#2639)

wpimath/src/main/java/edu/wpi/first/math/WPIMathJNI.java

@@ -65,6 +65,30 @@ public final class WPIMathJNI {
           int inputs,
           double[] S);
 
+  /**
+   * Computes the matrix exp.
+   *
+   * @param src  Array of elements of the matrix to be exponentiated.
+   * @param rows how many rows there are.
+   * @param dst  Array where the result will be stored.
+   */
+  public static native void exp(double[] src, int rows, double[] dst);
+
+  /**
+   * Returns true if (A, B) is a stabilizable pair.
+   *
+   * <p>(A,B) is stabilizable if and only if the uncontrollable eigenvalues of A, if
+   * any, have absolute values less than one, where an eigenvalue is
+   * uncontrollable if rank(lambda * I - A, B) &lt; n where n is number of states.
+   *
+   * @param states the number of states of the system.
+   * @param inputs the number of inputs to the system.
+   * @param A      System matrix.
+   * @param B      Input matrix.
+   * @return If the system is stabilizable.
+   */
+  public static native boolean isStabilizable(int states, int inputs, double[] A, double[] B);
+
   public static class Helper {
     private static AtomicBoolean extractOnStaticLoad = new AtomicBoolean(true);