Update .classpath for current lib jars

Tycho seems to use the .classpath in some way, because it prints stack
traces if there are nonexistant entries in it. Apparently the outdated
.classpath hasn't caused any actual problems so far, but let's fix it
just to be safe.

org.eventb.texteditor.parsers/.classpath

 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry exported="true" kind="lib" path="lib/guava-14.0.1.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/jsr305-1.3.9.jar"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-	<classpathentry exported="true" kind="lib" path="lib/bparser-2.4.40.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/eventbstruct-2.4.40.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/parserbase-2.4.40.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/prologlib-2.4.40.jar"/>
 	<classpathentry kind="output" path="bin"/>
+	<classpathentry exported="true" kind="lib" path="lib/eventbstruct-2.13.0.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/sablecc-runtime-3.7.0.jar"/>
 </classpath>