remove StopWatch, some slight change.

Author: Duncan-tree-zhou

instrumentation-annotations/src/main/java/io/opentelemetry/instrumentation/annotations/Counted.java

@@ -50,6 +50,7 @@
    *
    * <p>Description strings should follow the instrument description rules: <a
    * href="https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#instrument-description">https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#instrument-description</a>
+   *
    * <p>This property would not take effect if the value is not specified.
    */
   String description() default "";
@@ -59,6 +60,7 @@
    *
    * <p>Unit strings should follow the instrument unit rules: <a
    * href="https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#instrument-unit">https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#instrument-unit</a>
+   *
    * <p>This property would not take effect if the value is not specified.
    */
   String unit() default "{invocation}";
@@ -83,7 +85,9 @@
    *
    * <p>The name of the attribute for the return value of the method call. {@link Object#toString()}
    * will be called on the return value to convert it to a String.
+   *
    * <p>By default, the instrument will not have an attribute with the return value.
+   *
    * <p>Warning: be careful to fill it because it might cause an explosion of the cardinality on
    * your metric
    */

instrumentation-annotations/src/main/java/io/opentelemetry/instrumentation/annotations/Timed.java

@@ -80,7 +80,9 @@
    *
    * <p>The name of the attribute for the return value of the method call. {@link Object#toString()}
    * will be called on the return value to convert it to a String.
+   *
    * <p>By default, the instrument will not have an attribute with the return value.
+   *
    * <p>Warning: be careful to fill it because it might cause an explosion of the cardinality on
    * your metric
    */