Revert "Output Current Timestamp at run-class.sh script (apache#1702)"

This reverts commit 1e84ac0.

Author: Michael Barskii

Diff for: docs/learn/documentation/versioned/api/beam-api.md

@@ -26,7 +26,7 @@ title: Apache Beam API
 
 ### Introduction
 
-Apache Beam brings an easy-to-use but powerful API and model for state-of-art stream and batch data processing with portability across a variety of languages. The Beam API and model has the following characteristics:
+Apache Beam brings an easy-to-usen but powerful API and model for state-of-art stream and batch data processing with portability across a variety of languages. The Beam API and model has the following characteristics:
 
 - *Simple constructs, powerful semantics*: the whole beam API can be simply described by a `Pipeline` object, which captures all your data processing steps from input to output. Beam SDK supports over [20 data IOs](https://beam.apache.org/documentation/io/built-in/), and data transformations from simple [Map](https://beam.apache.org/releases/javadoc/2.11.0/org/apache/beam/sdk/transforms/MapElements.html) to complex [Combines and Joins](https://beam.apache.org/releases/javadoc/2.11.0/index.html?org/apache/beam/sdk/transforms/Combine.html).
 

Diff for: gradle/buildscript.gradle

@@ -22,7 +22,6 @@ repositories {
     maven {
       url "https://plugins.gradle.org/m2/"
     }
-    jcenter()
   }
 }
 

Diff for: samza-shell/src/main/bash/run-class.sh

@@ -28,8 +28,6 @@ cd $base_dir
 base_dir=`pwd`
 cd $home_dir
 
-echo "Current time: $(date '+%Y-%m-%d %H:%M:%S')"
-
 echo home_dir=$home_dir
 echo "framework base (location of this script). base_dir=$base_dir"