fixed bogus build.properties

Signed-off-by: Florian Thienel <florian@thienel.org>
diff --git a/org.eclipse.vex.core.tests/build.properties b/org.eclipse.vex.core.tests/build.properties
index 6b1aa40..edcefb7 100644
--- a/org.eclipse.vex.core.tests/build.properties
+++ b/org.eclipse.vex.core.tests/build.properties
@@ -3,6 +3,5 @@
 bin.includes = META-INF/,\
                .,\
                testResources/,\
-               bin/,\
                plugin.properties,\
                plugin.xml