JDK 15 RFR of JDK-8230771: Remove terminally deprecated constructors in java.base

[Joe Darcy]

Hello,

Please review this small API changes for JDK 15:

     JDK-8230771: Remove terminally deprecated constructors in java.base
     CSR: https://bugs.openjdk.java.net/browse/JDK-8235548
     webrev: http://cr.openjdk.java.net/~darcy/8230771.0/

Patch below.

Thanks,

-Joe

--- 
old/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java 
2019-12-08 10:56:14.223168685 -0800
+++ 
new/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java 
2019-12-08 10:56:13.999168685 -0800
@@ -40,12 +40,6 @@
   * @since 11
   */
  public final class ConstantBootstraps {
-    /**
-     * Do not call.
-     */
-    @Deprecated(forRemoval=true, since="14")
-    public ConstantBootstraps() {}
-
      // implements the upcall from the JVM, 
MethodHandleNatives.linkDynamicConstant:
      /*non-public*/
      static Object makeConstant(MethodHandle bootstrapMethod,
--- old/src/java.base/share/classes/java/lang/reflect/Modifier.java 
2019-12-08 10:56:14.775168685 -0800
+++ new/src/java.base/share/classes/java/lang/reflect/Modifier.java 
2019-12-08 10:56:14.555168685 -0800
@@ -44,13 +44,6 @@
   */
  public class Modifier {
      /**
-     * Do not call.
-     */
-    @Deprecated(forRemoval=true, since="14")
-    public Modifier() {}
-
-
-    /**
       * Return {@code true} if the integer argument includes the
       * {@code public} modifier, {@code false} otherwise.
       *