Bug 511715 - Wrong packing qualifier for "org.eclipse.ui.themes"

Remove the "unpack=false" qualifier in the platform feature definition.

Change-Id: Iedb6178fde00c9665b3643be43d43ed298ac13ae
Signed-off-by: Alex Freidin <freidin.alex@gmail.com>
diff --git a/features/org.eclipse.platform-feature/feature.xml b/features/org.eclipse.platform-feature/feature.xml
index 6e8c5e1..c7d15de 100644
--- a/features/org.eclipse.platform-feature/feature.xml
+++ b/features/org.eclipse.platform-feature/feature.xml
@@ -541,8 +541,7 @@
          id="org.eclipse.ui.themes"
          download-size="0"
          install-size="0"
-         version="0.0.0"
-         unpack="false"/>
+         version="0.0.0"/>
 
    <plugin
          id="org.eclipse.core.runtime"