Update Scaladoc

Author: takezoe

data/src/main/scala/org/apache/predictionio/data/store/LEventStore.scala

@@ -223,19 +223,6 @@ object LEventStore {
   /** Reads events generically. If entityType or entityId is not specified, it
     * results in table scan.
     *
-    * Note that this method uses `scala.concurrent.ExecutionContext.Implicits.global`
-    * internally. Since this is a thread pool which has a number of threads equal to
-    * available processors, parallelism is limited up to the number of processors.
-    *
-    * If this limitation become bottleneck of resource usage, you can increase the
-    * number of threads by declaring following VM options before calling "pio deploy":
-    *
-    * <pre>
-    * export JAVA_OPTS="$JAVA_OPTS \
-    *   -Dscala.concurrent.context.numThreads=1000 \
-    *   -Dscala.concurrent.context.maxThreads=1000"
-    * </pre>
-    *
     * @param appName return events of this app
     * @param entityType return events of this entityType
     *   - None means no restriction on entityType

data/src/main/scala/org/apache/predictionio/data/store/java/LJavaEventStore.scala

@@ -177,19 +177,6 @@ object LJavaEventStore {
   /** Reads events generically. If entityType or entityId is not specified, it
     * results in table scan.
     *
-    * Note that this method uses `scala.concurrent.ExecutionContext.Implicits.global`
-    * internally. Since this is a thread pool which has a number of threads equal to
-    * available processors, parallelism is limited up to the number of processors.
-    *
-    * If this limitation become bottleneck of resource usage, you can increase the
-    * number of threads by declaring following VM options before calling "pio deploy":
-    *
-    * <pre>
-    * export JAVA_OPTS="$JAVA_OPTS \
-    *   -Dscala.concurrent.context.numThreads=1000 \
-    *   -Dscala.concurrent.context.maxThreads=1000"
-    * </pre>
-    *
     * @param appName return events of this app
     * @param entityType return events of this entityType
     *   - None means no restriction on entityType