JDK 16 RFR of JDK-8249632: remove no-arg constructor from ToolProvider

[Joe Darcy]

Hello,

Please review the removal of a deprecated-for-removal constructor:

     JDK-8249632: remove no-arg constructor from ToolProvider
     webrev: http://cr.openjdk.java.net/~darcy/8249632.0/
     CSR: https://bugs.openjdk.java.net/browse/JDK-8249644

Patch below; thanks,

-Joe

--- old/src/java.compiler/share/classes/javax/tools/ToolProvider.java 
2020-07-16 18:59:58.685000000 -0700
+++ new/src/java.compiler/share/classes/javax/tools/ToolProvider.java 
2020-07-16 18:59:58.025000000 -0700
@@ -45,12 +45,6 @@
      private static final String systemJavaCompilerName   = 
"com.sun.tools.javac.api.JavacTool";

      /**
-     * Do not call.
-     */
-    @Deprecated(forRemoval=true, since="14")
-    public ToolProvider() {}
-
-    /**
       * Returns the Java programming language compiler provided
       * with this platform.
       * <p>The file manager returned by calling