Remove performance test

These tests are no longer used and do not belong here. They also depend
on an old version of commons-cli with some bugs and vulnerabilities.

Fixes #438

Author: acogoluegnes

pom.xml

@@ -59,7 +59,6 @@
     <micrometer.version>1.0.2</micrometer.version>
     <jackson.version>2.9.6</jackson.version>
     <logback.version>1.2.3</logback.version>
-    <commons-cli.version>1.1</commons-cli.version>
     <junit.version>4.12</junit.version>
     <awaitility.version>3.1.0</awaitility.version>
     <mockito.version>2.21.0</mockito.version>
@@ -705,12 +704,6 @@
       <version>${jackson.version}</version>
       <optional>true</optional>
     </dependency>
-    <dependency>
-      <groupId>commons-cli</groupId>
-      <artifactId>commons-cli</artifactId>
-      <version>${commons-cli.version}</version>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>