ICU-20007 Remove incorrect ICU4J doc of DecimalFormat.setGroupingUsed

DecimalFormat.setGroupingUsed(true) no longer sets the grouping size to 3.
The java doc should be removed.

diff --git a/icu4j/main/classes/core/src/com/ibm/icu/text/DecimalFormat.java b/icu4j/main/classes/core/src/com/ibm/icu/text/DecimalFormat.java
index f23154074cc1ee48eb8d1fd94f49332f19862d37..1185b5ba12648ea1226471aed01702050e1a65cd 100644 (file)
--- a/icu4j/main/classes/core/src/com/ibm/icu/text/DecimalFormat.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/text/DecimalFormat.java
@@ -1857,9 +1857,6 @@ public class DecimalFormat extends NumberFormat {
    * <p>For example, if grouping is enabled, 12345 will be printed as "12,345" in <em>en-US</em>. If
    * grouping were disabled, it would instead be printed as simply "12345".
    *
-   * <p>Calling <code>df.setGroupingUsed(true)</code> is functionally equivalent to setting grouping
-   * size to 3, as in <code>df.setGroupingSize(3)</code>.
-   *
    * @param enabled true to enable grouping separators; false to disable them.
    * @see #setGroupingSize
    * @see #setSecondaryGroupingSize