[I-Build-Tests] Remove unused test scripts

One script was intended to launch the I-build tests locally.
The other two scripts where tests to test the scripts for launching the
tests.

All of them are not up-to-date anymore and not used.
Furthermore this allows to remove more test code from the product
test.xml ANT scripts.

production/testScripts/configuration/sdk.tests/testScripts/test.xml

@@ -2185,67 +2185,4 @@
     <markTime msg="${message}" />
   </target>
 
-
-  <!--
-    function to centralize how we get (that is, set) the value of
-    'javaMajorVersion'. (expected to be integer, such as 5,6,7,8,9,
-    or will be "0" if the version could not be determined, for some reason.
-  -->
-
-  <target name="getJavaMajorVersion">
-    <!--
-      Since we don't support below java 11 we can safely ignore version numbers for java 8 and below
-    -->
-
-  	<loadresource property="javaMajorVersion">
-      <string value="${java.version}"/>
-      <filterchain>
-        <tokenfilter>
-          <replaceregex pattern="^(\d+)([\.-](.*))" replace="\1"/>
-        </tokenfilter>
-      </filterchain>
-    </loadresource>
-    <echo message="javaMajorVersion: ${javaMajorVersion}"/>
-
-  </target>
-
-  <macrodef name="printProperty">
-    <attribute name="property" />
-    <sequential>
-      <echo message="@{property}: ${@{property}}" />
-    </sequential>
-  </macrodef>
-
-
-  <target name="debug-allJavaProperties">
-    <echoproperties regex="^java\..*$" />
-  </target>
-  <target name="debug-allOSProperties">
-    <echoproperties regex="^os\..*$" />
-  </target>
-
-  <target
-    name="test-getJavaMajorVersion"
-    depends="debug-allJavaProperties,debug-allOSProperties,getJavaMajorVersion">
-    <printProperty property="javaMajorVersion" />
-    <printProperty property="java.version" />
-    <printProperty property="java.runtime.version" />
-    <printProperty property="java.vm.info" />
-    <printProperty property="java.specification.version" />
-    <printProperty property="java.vendor" />
-    <printProperty property="ant.version" />
-    <printProperty property="ant.java.version" />
-    <!-- <antcall target="printMainProperties" /> -->
-  </target>
-
-  <target
-    name="test-all"
-    depends="init,debug-allProperties,test-getJavaMajorVersion">
-  </target>
-
-  <target
-    name="debug-allProperties"
-    depends="init">
-    <echoproperties />
-  </target>
 </project>