Remove unused SessionCreateTest and SessionRestoreTest

The two tests have been commented out in the test.xml around 20 years
ago and do not seem to have been used since then. This change removes
the test classes and the commented out configuration in the text.xml.

Author: HeikoKlare

tests/org.eclipse.ui.tests/Eclipse UI Tests/org/eclipse/ui/tests/api/DeprecatedSessionRestoreTest.java

@@ -22,26 +22,6 @@
 
   <!-- This target defines the tests that need to be run. -->
   <target name="suite">
-    <!-- Commented out until source of problem found (not reusing same workspace dir)
-    <property name="session-folder" 
-              value="${eclipse-home}/ui_session_sniff_folder"/>
-    <delete dir="${session-folder}" quiet="true"/>
-    <ant target="ui-test" antfile="${library-file}" dir="${eclipse-home}">
-      <property name="data-dir" value="${session-folder}"/>
-      <property name="plugin-name" value="${plugin-name}"/>
-      <property name="classname" 
-                value="org.eclipse.ui.tests.api.SessionCreateTest"/>
-  
-    </ant>
-    
-    <ant target="ui-test" antfile="${library-file}" dir="${eclipse-home}">
-      <property name="data-dir" value="${session-folder}"/>
-      <property name="plugin-name" value="${plugin-name}"/>
-      <property name="classname"
-                value="org.eclipse.ui.tests.api.SessionRestoreTest"/>
-    </ant>
-    -->
-
     <property name="sniff-folder"
               value="${eclipse-home}/ui_sniff_folder"/>
     <delete dir="${sniff-folder}" quiet="true"/>
@@ -53,16 +33,6 @@
 
     </ant>
 
-    <property name="parts-data-folder"
-  	 	      value="${eclipse-home}/parts_data_folder"/>
-  	<delete dir="${parts-data-folder}" quiet="true"/>
-    <!--ant target="core-test" antfile="${library-file}" dir="${eclipse-home}">
-      <property name="data-dir" value="${parts-data-folder}"/>
-      <property name="plugin-name" value="${plugin-name}"/>
-      <property name="classname"
-                value="org.eclipse.ui.parts.tests.PartsReferencesTestSuite"/>
-    </ant-->
-    
   	<property name="session-data-folder"
   	 	      value="${eclipse-home}/session_data_folder"/>
   	<delete dir="${session-data-folder}" quiet="true"/>