Remove src/contrib/src from Eclipse project after code was moved to examples

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1702803 13f79535-47bb-0310-9956-ffa450edef68

.classpath

@@ -10,7 +10,6 @@
 	<classpathentry kind="src" path="src/scratchpad/testcases"/>
 	<classpathentry kind="src" path="src/resources/scratchpad"/>
 	<classpathentry kind="src" path="src/contrib/poi-ruby/java"/>
-	<classpathentry kind="src" path="src/contrib/src"/>
 	<classpathentry kind="src" path="src/examples/src"/>
 	<classpathentry kind="src" path="src/excelant/java"/>
 	<classpathentry kind="src" path="src/excelant/testcases"/>