Fix warnings in context.spy build.properties.

Change-Id: I7e0eff642b225ffbcde9c338b5e2726423ceca37
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/bundles/org.eclipse.e4.tools.context.spy/build.properties b/bundles/org.eclipse.e4.tools.context.spy/build.properties
index fac0b30..df80f7f 100644
--- a/bundles/org.eclipse.e4.tools.context.spy/build.properties
+++ b/bundles/org.eclipse.e4.tools.context.spy/build.properties
@@ -4,7 +4,4 @@
                plugin.xml,\
                icons/
 source.. = src/
-src.includes = META-INF/,\
-               icons/,\
-               plugin.xml,\
-               src/
+src.includes = icons/